Cooke Lenses Depth of Field Tables S4 Table Instructions 2

1.814. 1.586. 1.348. 1.149. 0.944. 0.797. F. 6.755. 12.271. INF. INF. INF. INF. INF. 4.00 N. 2.356. 2.089. 1.781. 1.475. 1.232. 0.991. 0.826. F 18.125. INF. INF. INF.
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Cooke Lenses Depth of Field Tables S4 Table Instructions 14mm S4 18mm S4 21mm S4 32mm S4 40mm S4 50mm S4 75mm S4 100mm S4 135mm S4 Zoom Table Instructions 18/100 Zoom 25/250 Mk-III Zoom

2 3 5 7 9 11 13 15 17 19 21 22 38

COOKE S4 PRIME LENSES Depth of Field Tables These depth of field tables refer specifically to the optical designs used for these lenses, since allowance has been made for the position of the front nodal point relative to the film plane in each case. The tables are based on a disc of confusion of 0.001 inches diameter for footage-scaled lenses and 0.025mm diameter for metric-scaled lenses. In cases where it may be desirable to allow for a smaller or larger disc of confusion, the T-numbers read from the tables may be increased or reduced in the required ratio. Thus the depth values at T/8.0 will be the depth obtained at a criterion for definition corresponding to a disc of confusion of 0.002 inches (footage-scaled) or 0.05mm (metric-scaled) if the lens is set at T/4.0. Key to tables: U = Object distance sharply measured from the film plane. N = Nearest distance in focus. F = Farthest distance in focus.

2

Cooke S4 U Feet 0' 9" 0' 10" 0' 11" 0' 12" 0' 13" 0' 14" 0' 15" 0' 16" 0' 17" 0' 18" 0' 20" 0' 22" 2' 0" 2' 3" 2' 6" 3' 0" 4' 0" 5' 0" 7' 0" 10' 0" 20' 0" INF

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F

T/2 0' 8.9" 0' 9.1" 0' 9.9" 0' 10.2" 0' 10.8" 0' 11.2" 0' 11.7" 1' 0.3" 1' 0.6" 1' 1.4" 1' 1.5" 1' 2.5" 1' 2.4" 1' 3.7" 1' 3.3" 1' 4.8" 1' 4.2" 1' 6" 1' 5" 1' 7.1" 1' 6.7" 1' 9.5" 1' 8.4" 1' 12" 1' 10" 2' 2.5" 2' 0.4" 2' 6.4" 2' 2.7" 2' 10.5" 2' 7.1" 3' 7.2" 3' 3.1" 5' 3.2" 3' 10.3" 7' 3.6" 4' 10.5" 13' 0.7" 6' 0.8" 32' 0.5" 8' 6.1" INF 14' 2.6" INF

14mm T/2.8 0' 8.9" 0' 9.1" 0' 9.8" 0' 10.2" 0' 10.7" 0' 11.3" 0' 11.6" 1' 0.4" 1' 0.5" 1' 1.6" 1' 1.4" 1' 2.8" 1' 2.2" 1' 3.9" 1' 3.1" 1' 5.1" 1' 3.9" 1' 6.4" 1' 4.7" 1' 7.6" 1' 6.3" 1' 10.2" 1' 7.8" 2' 0.9" 1' 9.4" 2' 3.7" 1' 11.5" 2' 8.1" 2' 1.6" 3' 0.8" 2' 5.5" 3' 11.1" 3' 0.5" 6' 0.8" 3' 6.5" 9' 0.3" 4' 4.3" 20' 5.2" 5' 3.3" 403' 2" 6' 11.7" INF 10' 3.4" INF

T/4 0' 8.8" 0' 9.2" 0' 9.7" 0' 10.3" 0' 10.6" 0' 11.5" 0' 11.4" 1' 0.7" 1' 0.3" 1' 1.9" 1' 1.1" 1' 3.1" 1' 1.9" 1' 4.4" 1' 2.7" 1' 5.7" 1' 3.5" 1' 7.1" 1' 4.2" 1' 8.5" 1' 5.7" 1' 11.4" 1' 7.1" 2' 2.5" 1' 8.4" 2' 5.7" 1' 10.4" 2' 11.1" 2' 0.2" 3' 5" 2' 3.5" 4' 6.8" 2' 9.3" 7' 11.2" 3' 2" 14' 2.9" 3' 9.4" 162' 4.3" 4' 5.1" INF 5' 6.3" INF 7' 3.9" INF

Apertures T/5.6 0' 8.7" 0' 9.3" 0' 9.6" 0' 10.5" 0' 10.4" 0' 11.7" 0' 11.3" 1' 1" 1' 0" 1' 2.3" 1' 0.8" 1' 3.6" 1' 1.5" 1' 5.1" 1' 2.3" 1' 6.6" 1' 3" 1' 8.1" 1' 3.6" 1' 9.7" 1' 4.9" 2' 1.2" 1' 6.2" 2' 5" 1' 7.4" 2' 9.2" 1' 9" 3' 4.3" 1' 10.6" 4' 0.6" 2' 1.3" 5' 10.8" 2' 5.9" 13' 10.1" 2' 9.5" 72' 11.5" 3' 2.8" INF 3' 8.1" INF 4' 4.3" INF 5' 4.3" INF

Feet T/8 0' 8.6" 0' 9.4" 0' 9.5" 0' 10.7" 0' 10.2" 1' 0" 0' 11" 1' 1.5" 0' 11.7" 1' 3" 1' 0.4" 1' 4.6" 1' 1" 1' 6.3" 1' 1.7" 1' 8.1" 1' 2.3" 1' 10" 1' 2.9" 2' 0.1" 1' 4" 2' 4.7" 1' 5" 2' 10.1" 1' 6" 3' 4.5" 1' 7.4" 4' 4.6" 1' 8.6" 5' 9.3" 1' 10.7" 11' 0.6" 2' 2.1" INF 2' 4.6" INF 2' 8.2" INF 2' 11.5" INF 3' 4.3" INF 3' 10.6" INF

T/11 0' 8.5" 0' 9.6" 0' 9.3" 0' 11" 0' 10" 1' 0.5" 0' 10.7" 1' 2.2" 0' 11.3" 1' 4" 0' 11.9" 1' 6" 1' 0.5" 1' 8.1" 1' 1" 1' 10.5" 1' 1.6" 2' 1.2" 1' 2.1" 2' 4.2" 1' 3" 2' 11.4" 1' 3.9" 3' 8.9" 1' 4.6" 4' 9.9" 1' 5.7" 7' 6.1" 1' 6.7" 13' 7.2" 1' 8.3" INF 1' 10.7" INF 2' 0.5" INF 2' 2.9" INF 2' 4.9" INF 2' 7.8" INF 2' 11.3" INF

T/16 0' 8.4" 0' 10" 0' 9" 0' 11.6" 0' 9.7" 1' 1.5" 0' 10.2" 1' 3.7" 0' 10.8" 1' 6.2" 0' 11.3" 1' 9.2" 0' 11.7" 2' 0.8" 1' 0.2" 2' 5.1" 1' 0.6" 2' 10.5" 1' 1" 3' 5.3" 1' 1.7" 5' 2.6" 1' 2.3" 9' 1.6" 1' 2.9" 24' 10.7" 1' 3.7" INF 1' 4.3" INF 1' 5.4" INF 1' 7" INF 1' 8.1" INF 1' 9.5" INF 1' 10.6" INF 2' 0.2" INF 2' 1.9" INF

T/22 0' 8.2" 0' 10.5" 0' 8.8" 1' 0.6" 0' 9.3" 1' 3.2" 0' 9.8" 1' 6.4" 0' 10.2" 1' 10.7" 0' 10.6" 2' 4.4" 0' 11" 3' 0.5" 0' 11.4" 4' 1.1" 0' 11.7" 5' 11" 0' 12" 9' 10.9" 1' 0.5" INF 1' 1" INF 1' 1.4" INF 1' 2" INF 1' 2.4" INF 1' 3.2" INF 1' 4.2" INF 1' 4.9" INF 1' 5.7" INF 1' 6.4" INF 1' 7.3" INF 1' 8.2" INF

3

Cooke S4 U Metres 0.25 N F 0.30 N F 0.35 N F 0.40 N F 0.45 N F 0.50 N F 0.60 N F 0.70 N F 0.80 N F 1.00 N F 1.20 N F 1.50 N F 2.00 N F 3.00 N F 5.00 N F INF N F

T/2 0.247 0.254 0.293 0.307 0.339 0.362 0.383 0.419 0.427 0.477 0.470 0.536 0.553 0.660 0.632 0.790 0.708 0.927 0.851 1.226 0.984 1.563 1.165 2.155 1.428 3.473 1.844 8.959 2.403 INF 4.401 INF

14mm T/2.8 0.245 0.255 0.291 0.311 0.335 0.368 0.377 0.427 0.419 0.489 0.459 0.553 0.536 0.688 0.609 0.834 0.678 0.992 0.805 1.353 0.920 1.788 1.073 2.634 1.287 5.012 1.606 52.404 2.004 INF 3.182 INF

T/4 0.243 0.258 0.287 0.315 0.329 0.376 0.369 0.441 0.407 0.508 0.444 0.580 0.514 0.736 0.578 0.913 0.638 1.114 0.746 1.611 0.841 2.298 0.962 4.013 1.125 15.930 1.352 INF 1.613 INF 2.267 INF

Apertures T/5.6 0.241 0.261 0.282 0.323 0.321 0.389 0.358 0.461 0.393 0.538 0.426 0.623 0.488 0.816 0.543 1.051 0.594 1.341 0.682 2.192 0.757 3.812 0.850 14.768 0.968 INF 1.124 INF 1.290 INF 1.657 INF

Metres T/8 0.237 0.266 0.276 0.334 0.311 0.410 0.344 0.496 0.375 0.593 0.403 0.705 0.454 0.985 0.500 1.381 0.540 1.983 0.607 5.136 0.662 INF 0.728 INF 0.808 INF 0.907 INF 1.005 INF 1.199 INF

T/11 0.233 0.274 0.268 0.351 0.300 0.442 0.329 0.552 0.355 0.687 0.379 0.856 0.421 1.366 0.457 2.403 0.488 5.641 0.538 INF 0.578 INF 0.624 INF 0.677 INF 0.740 INF 0.800 INF 0.908 INF

T/16 0.227 0.288 0.258 0.386 0.284 0.517 0.308 0.699 0.328 0.972 0.347 1.425 0.378 4.966 0.404 INF 0.425 INF 0.459 INF 0.485 INF 0.513 INF 0.545 INF 0.580 INF 0.612 INF 0.666 INF

T/22 0.221 0.309 0.247 0.446 0.269 0.671 0.288 1.108 0.304 2.322 0.318 23.106 0.341 INF 0.359 INF 0.374 INF 0.397 INF 0.414 INF 0.432 INF 0.451 INF 0.472 INF 0.490 INF 0.520 INF

4

Cooke S4 U Feet 0' 9" 0' 10" 0' 11" 0' 12" 0' 13" 0' 14" 0' 15" 0' 16" 0' 17" 0' 18" 0' 19" 0' 20" 0' 22" 2' 0" 2' 3" 2' 6" 2' 9" 3' 0" 3' 6" 4' 0" 5' 0" 6' 0" 7' 0" 10' 0" 15' 0" 30' 0" INF

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F

T/2 0' 8.9" 0' 9.1" 0' 9.9" 0' 10.1" 0' 10.8" 0' 11.2" 0' 11.8" 1' 0.2" 1' 0.7" 1' 1.3" 1' 1.6" 1' 2.4" 1' 2.6" 1' 3.5" 1' 3.5" 1' 4.6" 1' 4.4" 1' 5.7" 1' 5.3" 1' 6.8" 1' 6.2" 1' 7.9" 1' 7.1" 1' 9" 1' 8.9" 1' 11.3" 1' 10.6" 2' 1.6" 2' 1.2" 2' 5.2" 2' 3.7" 2' 8.9" 2' 6.1" 3' 0.6" 2' 8.5" 3' 4.5" 3' 1.2" 4' 0.5" 3' 5.7" 4' 8.9" 4' 2.1" 6' 3.4" 4' 9.9" 8' 0.1" 5' 5.2" 9' 11.6" 7' 0.3" 17' 9.7" 9' 1" 45' 11" 12' 10.3" INF 22' 0.1" INF

18mm T/2.8 0' 8.9" 0' 9.1" 0' 9.8" 0' 10.2" 0' 10.8" 0' 11.3" 0' 11.7" 1' 0.3" 1' 0.6" 1' 1.4" 1' 1.5" 1' 2.6" 1' 2.4" 1' 3.7" 1' 3.3" 1' 4.8" 1' 4.2" 1' 6" 1' 5" 1' 7.1" 1' 5.9" 1' 8.3" 1' 6.8" 1' 9.5" 1' 8.4" 1' 11.9" 1' 10.1" 2' 2.4" 2' 0.5" 2' 6.2" 2' 2.8" 2' 10.2" 2' 5.1" 3' 2.3" 2' 7.3" 3' 6.6" 2' 11.6" 4' 3.7" 3' 3.6" 5' 1.6" 3' 11.1" 7' 0.2" 4' 5.8" 9' 3.3" 4' 12" 12' 0.7" 6' 3.5" 26' 2" 7' 10.5" 295' 2.6" 10' 6.2" INF 15' 9.9" INF

T/4 0' 8.8" 0' 9.2" 0' 9.8" 0' 10.3" 0' 10.7" 0' 11.4" 0' 11.6" 1' 0.5" 1' 0.4" 1' 1.6" 1' 1.3" 1' 2.8" 1' 2.2" 1' 4" 1' 3" 1' 5.2" 1' 3.8" 1' 6.4" 1' 4.7" 1' 7.7" 1' 5.5" 1' 8.9" 1' 6.3" 1' 10.2" 1' 7.8" 2' 0.9" 1' 9.4" 2' 3.6" 1' 11.6" 2' 7.9" 2' 1.7" 3' 0.5" 2' 3.8" 3' 5.3" 2' 5.7" 3' 10.4" 2' 9.5" 4' 9.7" 3' 0.9" 5' 10.5" 3' 7.2" 8' 6.4" 4' 0.7" 12' 2.8" 4' 5.6" 17' 8.7" 5' 5.4" 92' 5.6" 6' 6.9" INF 8' 3.4" INF 11' 2.3" INF

Apertures T/5.6 0' 8.8" 0' 9.3" 0' 9.7" 0' 10.4" 0' 10.5" 0' 11.5" 0' 11.4" 1' 0.7" 1' 0.2" 1' 1.9" 1' 1.1" 1' 3.2" 1' 1.9" 1' 4.4" 1' 2.7" 1' 5.7" 1' 3.4" 1' 7.1" 1' 4.2" 1' 8.4" 1' 5" 1' 9.8" 1' 5.7" 1' 11.3" 1' 7.1" 2' 2.3" 1' 8.5" 2' 5.4" 1' 10.5" 2' 10.5" 2' 0.4" 3' 4.1" 2' 2.2" 3' 10.1" 2' 3.9" 4' 4.8" 2' 7" 5' 8.3" 2' 9.9" 7' 3.7" 3' 3" 12' 1.6" 3' 7.4" 21' 8.2" 3' 11.1" 49' 7.1" 4' 7.7" INF 5' 5" INF 6' 5.9" INF 8' 1.2" INF

Feet T/8 0' 8.7" 0' 9.4" 0' 9.5" 0' 10.6" 0' 10.4" 0' 11.8" 0' 11.2" 1' 1.1" 0' 12" 1' 2.4" 1' 0.7" 1' 3.8" 1' 1.5" 1' 5.2" 1' 2.2" 1' 6.7" 1' 2.9" 1' 8.2" 1' 3.6" 1' 9.8" 1' 4.2" 1' 11.4" 1' 4.9" 2' 1.2" 1' 6.2" 2' 4.8" 1' 7.4" 2' 8.8" 1' 9.1" 3' 3.5" 1' 10.7" 3' 11.3" 2' 0.1" 4' 8.4" 2' 1.5" 5' 7.1" 2' 4.1" 7' 11.8" 2' 6.4" 11' 9.1" 2' 10.2" 35' 0" 3' 1.4" INF 3' 4" INF 3' 9.9" INF 4' 3.7" INF 4' 11.3" INF 5' 9.4" INF

T/11 0' 8.6" 0' 9.5" 0' 9.4" 0' 10.8" 0' 10.1" 1' 0.2" 0' 10.9" 1' 1.6" 0' 11.6" 1' 3" 1' 0.3" 1' 4.6" 1' 1" 1' 6.3" 1' 1.6" 1' 8" 1' 2.3" 1' 9.8" 1' 2.9" 1' 11.8" 1' 3.5" 2' 1.9" 1' 4" 2' 4.1" 1' 5.1" 2' 9" 1' 6.2" 3' 2.6" 1' 7.6" 4' 0.8" 1' 8.9" 5' 1.9" 1' 10.1" 6' 7.3" 1' 11.2" 8' 7.8" 2' 1.2" 16' 9.8" 2' 2.9" 57' 11.4" 2' 5.8" INF 2' 8.1" INF 2' 9.9" INF 3' 1.8" INF 3' 5.6" INF 3' 10.1" INF 4' 3.7" INF

T/16 0' 8.4" 0' 9.8" 0' 9.1" 0' 11.3" 0' 9.8" 1' 0.8" 0' 10.5" 1' 2.5" 0' 11.1" 1' 4.3" 0' 11.7" 1' 6.3" 1' 0.3" 1' 8.5" 1' 0.9" 1' 10.9" 1' 1.4" 2' 1.6" 1' 1.9" 2' 4.5" 1' 2.4" 2' 7.8" 1' 2.8" 2' 11.5" 1' 3.7" 3' 8.4" 1' 4.5" 4' 8.2" 1' 5.6" 6' 11.6" 1' 6.6" 11' 5.4" 1' 7.5" 24' 3.1" 1' 8.3" 376' 2.2" 1' 9.7" INF 1' 10.9" INF 2' 0.8" INF 2' 2.2" INF 2' 3.4" INF 2' 5.7" INF 2' 7.8" INF 2' 10.2" INF 3' 0.9" INF

T/22 0' 8.2" 0' 10.2" 0' 8.9" 0' 11.9" 0' 9.5" 1' 1.8" 0' 10.1" 1' 4" 0' 10.6" 1' 6.4" 0' 11.1" 1' 9.2" 0' 11.6" 2' 0.5" 1' 0.1" 2' 4.3" 1' 0.5" 2' 8.9" 1' 0.9" 3' 2.4" 1' 1.3" 3' 9.3" 1' 1.7" 4' 6" 1' 2.4" 6' 9.1" 1' 3" 11' 8.4" 1' 3.8" 116' 0.4" 1' 4.6" INF 1' 5.2" INF 1' 5.8" INF 1' 6.8" INF 1' 7.6" INF 1' 8.9" INF 1' 9.8" INF 1' 10.6" INF 1' 12" INF 2' 1.2" INF 2' 2.6" INF 2' 4.1" INF

5

Cooke S4 U Metres 0.25 N F 0.30 N F 0.35 N F 0.40 N F 0.45 N F 0.50 N F 0.60 N F 0.70 N F 0.80 N F 1.00 N F 1.20 N F 1.50 N F 2.00 N F 3.00 N F 5.00 N F 10.00 N F INF N F

T/2 0.247 0.253 0.295 0.306 0.341 0.359 0.388 0.414 0.433 0.469 0.478 0.525 0.566 0.640 0.652 0.758 0.735 0.881 0.895 1.138 1.046 1.414 1.260 1.868 1.582 2.749 2.127 5.209 2.935 18.350 4.103 INF 6.813 INF

18mm T/2.8 0.246 0.254 0.292 0.308 0.338 0.363 0.383 0.419 0.427 0.477 0.470 0.536 0.554 0.657 0.634 0.785 0.712 0.918 0.859 1.206 0.996 1.526 1.185 2.076 1.463 3.247 1.910 7.457 2.527 INF 3.334 INF 4.899 INF

T/4 0.244 0.256 0.289 0.312 0.333 0.369 0.376 0.428 0.418 0.490 0.459 0.553 0.536 0.686 0.610 0.829 0.681 0.983 0.812 1.328 0.931 1.734 1.091 2.501 1.316 4.485 1.660 21.821 2.097 INF 2.612 INF 3.463 INF

Apertures T/5.6 0.242 0.259 0.286 0.317 0.328 0.378 0.368 0.441 0.407 0.508 0.444 0.578 0.515 0.730 0.582 0.898 0.644 1.086 0.757 1.538 0.857 2.131 0.987 3.469 1.164 9.355 1.417 INF 1.716 INF 2.037 INF 2.506 INF

Metres T/8 0.239 0.263 0.280 0.325 0.319 0.392 0.356 0.463 0.392 0.540 0.425 0.622 0.488 0.809 0.545 1.030 0.597 1.297 0.689 2.039 0.768 3.302 0.868 8.693 0.996 INF 1.169 INF 1.358 INF 1.544 INF 1.789 INF

T/11 0.235 0.269 0.274 0.337 0.310 0.412 0.343 0.495 0.375 0.587 0.404 0.691 0.458 0.943 0.506 1.276 0.549 1.740 0.622 3.552 0.684 11.730 0.758 INF 0.850 INF 0.966 INF 1.086 INF 1.196 INF 1.332 INF

T/16 0.229 0.280 0.264 0.359 0.295 0.452 0.324 0.562 0.350 0.695 0.375 0.859 0.418 1.334 0.454 2.216 0.487 4.420 0.540 INF 0.582 INF 0.632 INF 0.690 INF 0.760 INF 0.826 INF 0.884 INF 0.951 INF

T/22 0.223 0.295 0.254 0.392 0.281 0.517 0.305 0.683 0.327 0.914 0.346 1.258 0.380 2.927 0.408 70.095 0.432 INF 0.471 INF 0.500 INF 0.533 INF 0.571 INF 0.614 INF 0.653 INF 0.686 INF 0.723 INF

6

Cooke S4 U Feet 0' 9" 0' 10" 0' 11" 0' 12" 0' 13" 0' 14" 0' 15" 0' 16" 0' 17" 0' 18" 0' 19" 0' 20" 0' 22" 2' 0" 2' 3" 2' 6" 2' 9" 3' 0" 3' 6" 4' 0" 5' 0" 6' 0" 7' 0" 10' 0" 15' 0" 30' 0" INF

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F

T/2 0' 8.9" 0' 9.1" 0' 9.9" 0' 10.1" 0' 10.9" 0' 11.1" 0' 11.8" 1' 0.2" 1' 0.8" 1' 1.2" 1' 1.7" 1' 2.3" 1' 2.7" 1' 3.4" 1' 3.6" 1' 4.4" 1' 4.5" 1' 5.5" 1' 5.5" 1' 6.6" 1' 6.4" 1' 7.7" 1' 7.3" 1' 8.8" 1' 9.1" 1' 11" 1' 10.9" 2' 1.2" 2' 1.6" 2' 4.6" 2' 4.2" 2' 8.1" 2' 6.8" 2' 11.6" 2' 9.3" 3' 3.2" 3' 2.3" 3' 10.6" 3' 7.1" 4' 6.3" 4' 4.3" 5' 10.7" 5' 0.9" 7' 4.4" 5' 9.1" 8' 11.7" 7' 7.2" 14' 9.5" 10' 1.2" 29' 10" 15' 0.7" INF 29' 7.1" INF

21mm T/2.8 0' 8.9" 0' 9.1" 0' 9.9" 0' 10.1" 0' 10.8" 0' 11.2" 0' 11.8" 1' 0.3" 1' 0.7" 1' 1.3" 1' 1.6" 1' 2.4" 1' 2.5" 1' 3.5" 1' 3.4" 1' 4.6" 1' 4.4" 1' 5.7" 1' 5.3" 1' 6.8" 1' 6.1" 1' 8" 1' 7" 1' 9.1" 1' 8.8" 1' 11.4" 1' 10.5" 2' 1.7" 2' 1.1" 2' 5.3" 2' 3.5" 2' 9" 2' 6" 3' 0.8" 2' 8.4" 3' 4.7" 3' 1" 4' 0.8" 3' 5.4" 4' 9.4" 4' 1.8" 6' 4.2" 4' 9.5" 8' 1.5" 5' 4.6" 10' 1.7" 6' 11.3" 18' 4.6" 8' 11.4" 49' 10.9" 12' 7.1" INF 21' 2.8" INF

T/4 0' 8.9" 0' 9.1" 0' 9.8" 0' 10.2" 0' 10.7" 0' 11.3" 0' 11.7" 1' 0.4" 1' 0.6" 1' 1.5" 1' 1.5" 1' 2.6" 1' 2.3" 1' 3.7" 1' 3.2" 1' 4.9" 1' 4.1" 1' 6" 1' 5" 1' 7.2" 1' 5.8" 1' 8.4" 1' 6.7" 1' 9.6" 1' 8.3" 2' 0.1" 1' 9.9" 2' 2.6" 2' 0.3" 2' 6.5" 2' 2.6" 2' 10.6" 2' 4.9" 3' 2.8" 2' 7.1" 3' 7.2" 2' 11.2" 4' 4.6" 3' 3.2" 5' 2.8" 3' 10.4" 7' 2.5" 4' 5" 9' 7.4" 4' 10.9" 12' 7.6" 6' 1.8" 29' 1" 7' 7.9" INF 10' 1.6" INF 14' 11.7" INF

Apertures T/5.6 0' 8.8" 0' 9.2" 0' 9.7" 0' 10.3" 0' 10.6" 0' 11.4" 0' 11.5" 1' 0.5" 1' 0.4" 1' 1.7" 1' 1.3" 1' 2.9" 1' 2.1" 1' 4.1" 1' 2.9" 1' 5.3" 1' 3.8" 1' 6.5" 1' 4.6" 1' 7.8" 1' 5.4" 1' 9.1" 1' 6.2" 1' 10.4" 1' 7.7" 2' 1.1" 1' 9.2" 2' 3.8" 1' 11.4" 2' 8.2" 2' 1.5" 3' 0.9" 2' 3.5" 3' 5.8" 2' 5.5" 3' 11.1" 2' 9.1" 4' 10.7" 3' 0.6" 6' 0.1" 3' 6.7" 8' 9.7" 4' 0.1" 12' 9.7" 4' 4.8" 18' 11.3" 5' 4.3" 138' 3.1" 6' 5.2" INF 8' 0.8" INF 10' 9.6" INF

Feet T/8 0' 8.7" 0' 9.3" 0' 9.6" 0' 10.4" 0' 10.5" 0' 11.6" 0' 11.3" 1' 0.8" 1' 0.2" 1' 2" 1' 1" 1' 3.3" 1' 1.8" 1' 4.6" 1' 2.6" 1' 5.9" 1' 3.3" 1' 7.3" 1' 4.1" 1' 8.7" 1' 4.8" 1' 10.1" 1' 5.5" 1' 11.6" 1' 6.9" 2' 2.7" 1' 8.3" 2' 6" 1' 10.2" 2' 11.3" 2' 0" 3' 5.1" 2' 1.8" 3' 11.5" 2' 3.4" 4' 6.6" 2' 6.5" 5' 11.5" 2' 9.3" 7' 9" 3' 2.2" 13' 4.9" 3' 6.3" 26' 1.7" 3' 9.9" 81' 5.3" 4' 6" INF 5' 2.6" INF 6' 2.5" INF 7' 8" INF

T/11 0' 8.6" 0' 9.4" 0' 9.5" 0' 10.6" 0' 10.3" 0' 11.9" 0' 11.1" 1' 1.2" 0' 11.9" 1' 2.5" 1' 0.6" 1' 3.9" 1' 1.4" 1' 5.3" 1' 2.1" 1' 6.8" 1' 2.8" 1' 8.4" 1' 3.5" 1' 10" 1' 4.1" 1' 11.7" 1' 4.8" 2' 1.4" 1' 6" 2' 5.2" 1' 7.2" 2' 9.3" 1' 8.9" 3' 4.2" 1' 10.5" 4' 0.2" 1' 11.9" 4' 9.7" 2' 1.3" 5' 8.9" 2' 3.8" 8' 3.4" 2' 6.1" 12' 4.8" 2' 9.8" 41' 0.6" 3' 1" INF 3' 3.5" INF 3' 9.2" INF 4' 2.9" INF 4' 10.3" INF 5' 8.1" INF

T/16 0' 8.5" 0' 9.6" 0' 9.3" 0' 10.9" 0' 10" 1' 0.3" 0' 10.8" 1' 1.8" 0' 11.5" 1' 3.4" 1' 0.2" 1' 5" 1' 0.8" 1' 6.8" 1' 1.4" 1' 8.6" 1' 2" 1' 10.6" 1' 2.6" 2' 0.7" 1' 3.2" 2' 3" 1' 3.7" 2' 5.4" 1' 4.8" 2' 10.9" 1' 5.7" 3' 5.2" 1' 7.1" 4' 5.1" 1' 8.3" 5' 9.2" 1' 9.5" 7' 7.9" 1' 10.5" 10' 6.6" 2' 0.4" 26' 1.1" 2' 2" INF 2' 4.7" INF 2' 6.7" INF 2' 8.4" INF 2' 11.9" INF 3' 3.3" INF 3' 7.3" INF 4' 0.2" INF

T/22 0' 8.3" 0' 9.9" 0' 9.1" 0' 11.4" 0' 9.8" 1' 1" 0' 10.4" 1' 2.7" 0' 11" 1' 4.6" 0' 11.6" 1' 6.7" 1' 0.2" 1' 8.9" 1' 0.7" 1' 11.5" 1' 1.3" 2' 2.2" 1' 1.7" 2' 5.3" 1' 2.2" 2' 8.8" 1' 2.7" 3' 0.7" 1' 3.5" 3' 10.3" 1' 4.3" 4' 11.3" 1' 5.4" 7' 6.3" 1' 6.4" 12' 11.9" 1' 7.2" 32' 1.6" 1' 8" INF 1' 9.4" INF 1' 10.6" INF 2' 0.4" INF 2' 1.8" INF 2' 2.9" INF 2' 5.2" INF 2' 7.2" INF 2' 9.5" INF 3' 0.2" INF

7

Cooke S4 U Metres 0.25 N F 0.30 N F 0.35 N F 0.40 N F 0.45 N F 0.50 N F 0.60 N F 0.70 N F 0.80 N F 1.00 N F 1.20 N F 1.50 N F 2.00 N F 3.00 N F 5.00 N F 10.00 N F INF N F

T/2 0.248 0.252 0.296 0.305 0.343 0.357 0.390 0.410 0.437 0.464 0.483 0.519 0.573 0.630 0.662 0.743 0.749 0.860 0.917 1.101 1.079 1.355 1.310 1.762 1.666 2.516 2.288 4.403 3.262 11.008 4.791 INF 9.018 INF

21mm T/2.8 0.247 0.253 0.294 0.306 0.341 0.360 0.387 0.415 0.432 0.470 0.476 0.527 0.564 0.643 0.648 0.763 0.731 0.887 0.889 1.149 1.038 1.431 1.248 1.896 1.563 2.811 2.093 5.437 2.870 21.541 3.977 INF 6.473 INF

T/4 0.245 0.255 0.292 0.309 0.337 0.365 0.381 0.422 0.425 0.480 0.467 0.539 0.550 0.663 0.629 0.794 0.705 0.931 0.849 1.229 0.982 1.562 1.166 2.145 1.432 3.420 1.858 8.453 2.436 INF 3.176 INF 4.564 INF

Apertures T/5.6 0.244 0.257 0.288 0.313 0.332 0.371 0.374 0.431 0.416 0.493 0.456 0.558 0.532 0.694 0.605 0.840 0.674 0.998 0.802 1.357 0.918 1.785 1.073 2.608 1.291 4.843 1.619 34.115 2.032 INF 2.513 INF 3.291 INF

Metres T/8 0.241 0.260 0.284 0.319 0.325 0.381 0.365 0.447 0.403 0.515 0.439 0.588 0.509 0.746 0.573 0.923 0.633 1.123 0.742 1.616 0.837 2.285 0.961 3.904 1.127 13.432 1.362 INF 1.635 INF 1.924 INF 2.337 INF

T/11 0.238 0.265 0.279 0.328 0.317 0.396 0.354 0.468 0.388 0.547 0.421 0.632 0.483 0.825 0.539 1.057 0.590 1.339 0.680 2.144 0.757 3.580 0.853 10.900 0.977 INF 1.143 INF 1.323 INF 1.499 INF 1.730 INF

T/16 0.233 0.273 0.270 0.343 0.305 0.423 0.337 0.511 0.367 0.612 0.395 0.727 0.446 1.014 0.491 1.416 0.531 2.017 0.600 5.000 0.656 469.870 0.723 INF 0.806 INF 0.909 INF 1.014 INF 1.109 INF 1.224 INF

T/22 0.228 0.283 0.261 0.365 0.292 0.463 0.320 0.579 0.346 0.722 0.369 0.900 0.411 1.435 0.447 2.507 0.478 5.747 0.529 INF 0.570 INF 0.617 INF 0.672 INF 0.739 INF 0.802 INF 0.857 INF 0.920 INF

8

Cooke S4 U Feet 0' 12" 0' 13" 0' 14" 0' 15" 0' 16" 0' 17" 0' 18" 0' 19" 0' 20" 0' 22" 2' 0" 2' 3" 2' 6" 2' 9" 3' 0" 3' 6" 4' 0" 4' 6" 5' 0" 5' 6" 6' 0" 7' 0" 8' 0" 10' 0" 12' 0" 15' 0" 20' 0" 30' 0" 60' 0" INF

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F

T/2 0' 11.9" 1' 0.1" 1' 0.9" 1' 1.1" 1' 1.9" 1' 2.1" 1' 2.9" 1' 3.1" 1' 3.8" 1' 4.2" 1' 4.8" 1' 5.2" 1' 5.8" 1' 6.2" 1' 6.7" 1' 7.3" 1' 7.7" 1' 8.3" 1' 9.6" 1' 10.4" 1' 11.5" 2' 0.5" 2' 2.4" 2' 3.7" 2' 5.2" 2' 6.8" 2' 8" 2' 10.1" 2' 10.8" 3' 1.3" 3' 4.3" 3' 7.8" 3' 9.8" 4' 2.5" 4' 3.1" 4' 9.2" 4' 8.4" 5' 4.1" 5' 1.7" 5' 11" 5' 6.8" 6' 6.1" 6' 5" 7' 8.6" 7' 2.8" 8' 11.5" 8' 9.8" 11' 6.9" 10' 3.8" 14' 4.4" 12' 5.2" 18' 11.4" 15' 7.8" 27' 9.8" 21' 1.3" 52' 3.1" 32' 4.8" 431' 5.3" 69' 8.3" INF

32mm T/2.8 0' 11.9" 1' 0.1" 1' 0.9" 1' 1.1" 1' 1.8" 1' 2.2" 1' 2.8" 1' 3.2" 1' 3.8" 1' 4.3" 1' 4.7" 1' 5.3" 1' 5.7" 1' 6.3" 1' 6.6" 1' 7.4" 1' 7.6" 1' 8.4" 1' 9.5" 1' 10.6" 1' 11.3" 2' 0.7" 2' 2.1" 2' 3.9" 2' 4.9" 2' 7.2" 2' 7.6" 2' 10.5" 2' 10.3" 3' 1.8" 3' 3.7" 3' 8.6" 3' 8.9" 4' 3.6" 4' 2.1" 4' 10.6" 4' 7.2" 5' 5.9" 5' 0.1" 6' 1.3" 5' 5" 6' 8.9" 6' 2.5" 8' 0.5" 6' 11.6" 9' 5" 8' 5" 12' 4.3" 9' 9.3" 15' 7.4" 11' 7.7" 21' 2.4" 14' 4.9" 33' 0.1" 18' 10.6" 74' 6.5" 27' 4.7" INF 49' 10.6" INF

T/4 0' 11.8" 1' 0.2" 1' 0.8" 1' 1.2" 1' 1.8" 1' 2.2" 1' 2.7" 1' 3.3" 1' 3.7" 1' 4.4" 1' 4.6" 1' 5.4" 1' 5.5" 1' 6.5" 1' 6.5" 1' 7.6" 1' 7.4" 1' 8.6" 1' 9.2" 1' 10.8" 1' 11.1" 2' 1" 2' 1.8" 2' 4.4" 2' 4.5" 2' 7.8" 2' 7.1" 2' 11.2" 2' 9.7" 3' 2.7" 3' 2.8" 3' 9.9" 3' 7.8" 4' 5.3" 4' 0.6" 5' 0.9" 4' 5.3" 5' 8.8" 4' 9.9" 6' 5" 5' 2.4" 7' 1.4" 5' 11.1" 8' 7.2" 6' 7.3" 10' 2.3" 7' 10.7" 13' 9.1" 9' 0.7" 17' 11.5" 10' 7.6" 25' 9.9" 12' 10.5" 45' 11.5" 16' 3.8" 208' 10.4" 22' 3.2" INF 35' 0.4" INF

Apertures T/5.6 0' 11.8" 1' 0.2" 1' 0.7" 1' 1.3" 1' 1.7" 1' 2.4" 1' 2.6" 1' 3.4" 1' 3.5" 1' 4.5" 1' 4.4" 1' 5.6" 1' 5.4" 1' 6.7" 1' 6.3" 1' 7.8" 1' 7.2" 1' 8.9" 1' 9" 1' 11.2" 1' 10.7" 2' 1.5" 2' 1.3" 2' 5" 2' 3.9" 2' 8.5" 2' 6.4" 3' 0.2" 2' 8.9" 3' 3.9" 3' 1.7" 3' 11.6" 3' 6.3" 4' 7.7" 3' 10.8" 5' 4.2" 4' 3.1" 6' 1.1" 4' 7.3" 6' 10.5" 4' 11.3" 7' 8.4" 5' 7" 9' 5.7" 6' 2.2" 11' 5.6" 7' 3.4" 16' 2.9" 8' 3.1" 22' 5.8" 9' 6.5" 36' 6.2" 11' 3.5" 97' 1.7" 13' 10" INF 17' 10.1" INF 25' 1.5" INF

Feet T/8 0' 11.7" 1' 0.3" 1' 0.6" 1' 1.4" 1' 1.5" 1' 2.5" 1' 2.4" 1' 3.6" 1' 3.3" 1' 4.7" 1' 4.2" 1' 5.9" 1' 5.1" 1' 7" 1' 6" 1' 8.2" 1' 6.8" 1' 9.4" 1' 8.6" 1' 11.7" 1' 10.2" 2' 2.2" 2' 0.7" 2' 5.9" 2' 3.1" 2' 9.8" 2' 5.4" 3' 1.8" 2' 7.7" 3' 5.9" 3' 0.1" 4' 2.6" 3' 4.3" 4' 12" 3' 8.3" 5' 10" 4' 0.1" 6' 8.9" 4' 3.7" 7' 8.6" 4' 7.2" 8' 9.4" 5' 1.7" 11' 2.6" 5' 7.7" 14' 1.8" 6' 6.4" 22' 4.2" 7' 3.6" 36' 4.8" 8' 3.3" 98' 1.1" 9' 6.6" INF 11' 3.3" INF 13' 9.3" INF 17' 8.4" INF

T/11 0' 11.6" 1' 0.4" 1' 0.5" 1' 1.6" 1' 1.4" 1' 2.7" 1' 2.3" 1' 3.9" 1' 3.1" 1' 5.1" 1' 4" 1' 6.2" 1' 4.8" 1' 7.5" 1' 5.6" 1' 8.7" 1' 6.5" 1' 9.9" 1' 8.1" 2' 0.5" 1' 9.6" 2' 3.1" 1' 11.9" 2' 7.2" 2' 2.2" 2' 11.5" 2' 4.3" 3' 4" 2' 6.4" 3' 8.7" 2' 10.3" 4' 7" 3' 2" 5' 6.3" 3' 5.5" 6' 7.1" 3' 8.8" 7' 9.4" 3' 11.9" 9' 1.7" 4' 2.9" 10' 8.4" 4' 8.3" 14' 7.3" 5' 1.2" 20' 1.5" 5' 9.6" 42' 8.3" 6' 4.7" 169' 2.7" 7' 1.4" INF 8' 0.2" INF 9' 2.3" INF 10' 9.1" INF 12' 11.7" INF

T/16 0' 11.4" 1' 0.7" 1' 0.3" 1' 1.9" 1' 1.1" 1' 3.1" 1' 1.9" 1' 4.3" 1' 2.8" 1' 5.6" 1' 3.5" 1' 6.9" 1' 4.3" 1' 8.2" 1' 5.1" 1' 9.6" 1' 5.9" 1' 11" 1' 7.3" 2' 1.9" 1' 8.8" 2' 4.9" 1' 10.8" 2' 9.7" 2' 0.8" 3' 2.9" 2' 2.6" 3' 8.5" 2' 4.4" 4' 2.5" 2' 7.8" 5' 4.4" 2' 10.9" 6' 9" 3' 1.7" 8' 5.4" 3' 4.4" 10' 6.9" 3' 6.8" 13' 4" 3' 9.1" 17' 0.3" 4' 1.2" 30' 1.7" 4' 4.8" 71' 6" 4' 10.8" INF 5' 3.7" INF 5' 9.4" INF 6' 4.3" INF 7' 0.7" INF 7' 11.1" INF 9' 0.4" INF

T/22 0' 11.2" 1' 1" 1' 0" 1' 2.2" 1' 0.8" 1' 3.6" 1' 1.6" 1' 4.9" 1' 2.4" 1' 6.3" 1' 3.1" 1' 7.8" 1' 3.8" 1' 9.3" 1' 4.5" 1' 10.8" 1' 5.2" 2' 0.4" 1' 6.5" 2' 3.8" 1' 7.8" 2' 7.4" 1' 9.6" 3' 1.3" 1' 11.3" 3' 8" 2' 0.9" 4' 3.6" 2' 2.5" 5' 0.2" 2' 5.3" 6' 9.6" 2' 7.8" 9' 3.3" 2' 10.1" 12' 11.5" 3' 0.2" 18' 11.9" 3' 2.1" 30' 8.1" 3' 3.8" 62' 11.8" 3' 6.9" INF 3' 9.5" INF 4' 1.8" INF 4' 5.2" INF 4' 9" INF 5' 1.4" INF 5' 6.6" INF 6' 0.7" INF 6' 8.1" INF

9

Cooke S4 U Metres 0.35 N F 0.40 N F 0.45 N F 0.50 N F 0.60 N F 0.70 N F 0.80 N F 0.90 N F 1.00 N F 1.10 N F 1.20 N F 1.40 N F 1.60 N F 1.80 N F 2.00 N F 2.50 N F 3.00 N F 4.00 N F 5.00 N F 7.00 N F 10.00 N F 20.00 N F INF N F

T/2 0.347 0.353 0.396 0.404 0.444 0.456 0.493 0.508 0.589 0.612 0.684 0.717 0.778 0.824 0.871 0.931 0.964 1.040 1.055 1.149 1.146 1.260 1.325 1.484 1.502 1.713 1.675 1.947 1.845 2.185 2.258 2.803 2.654 3.455 3.400 4.868 4.089 6.453 5.321 10.276 6.875 18.493 10.428 275.715 21.581 INF

32mm T/2.8 0.346 0.354 0.394 0.406 0.442 0.458 0.490 0.511 0.584 0.617 0.677 0.725 0.769 0.834 0.860 0.944 0.950 1.057 1.038 1.170 1.126 1.286 1.298 1.521 1.466 1.764 1.630 2.013 1.790 2.270 2.175 2.947 2.538 3.679 3.209 5.335 3.813 7.309 4.858 12.664 6.116 28.113 8.763 INF 15.447 INF

T/4 0.344 0.356 0.392 0.409 0.439 0.462 0.486 0.516 0.578 0.625 0.668 0.736 0.757 0.849 0.844 0.965 0.930 1.083 1.014 1.204 1.097 1.327 1.259 1.580 1.416 1.845 1.567 2.122 1.714 2.411 2.061 3.195 2.383 4.079 2.960 6.236 3.464 9.136 4.300 19.495 5.251 130.402 7.076 INF 10.847 INF

Apertures T/5.6 0.342 0.358 0.389 0.412 0.435 0.467 0.480 0.522 0.569 0.635 0.656 0.751 0.741 0.871 0.824 0.994 0.905 1.121 0.984 1.251 1.062 1.386 1.211 1.668 1.354 1.968 1.491 2.288 1.622 2.630 1.927 3.601 2.204 4.776 2.685 8.066 3.090 13.752 3.733 70.749 4.423 INF 5.640 INF 7.780 INF

Metres T/8 0.339 0.362 0.384 0.418 0.429 0.475 0.472 0.533 0.557 0.652 0.639 0.776 0.719 0.906 0.796 1.042 0.870 1.183 0.943 1.331 1.012 1.486 1.146 1.820 1.272 2.187 1.391 2.595 1.503 3.051 1.758 4.460 1.983 6.445 2.359 14.528 2.662 58.742 3.121 INF 3.584 INF 4.333 INF 5.479 INF

T/11 0.335 0.367 0.379 0.425 0.421 0.485 0.463 0.546 0.543 0.674 0.620 0.810 0.693 0.955 0.764 1.109 0.831 1.273 0.896 1.449 0.958 1.637 1.075 2.057 1.183 2.548 1.284 3.129 1.378 3.826 1.586 6.393 1.764 11.570 2.052 INF 2.275 INF 2.596 INF 2.904 INF 3.371 INF 4.016 INF

T/16 0.329 0.376 0.370 0.438 0.410 0.503 0.448 0.571 0.521 0.716 0.590 0.876 0.655 1.051 0.716 1.245 0.774 1.462 0.828 1.704 0.880 1.978 0.976 2.645 1.062 3.541 1.141 4.809 1.213 6.741 1.368 24.382 1.495 INF 1.692 INF 1.837 INF 2.037 INF 2.217 INF 2.473 INF 2.796 INF

T/22 0.322 0.387 0.360 0.455 0.397 0.528 0.432 0.605 0.498 0.776 0.559 0.972 0.615 1.200 0.667 1.469 0.716 1.789 0.761 2.178 0.804 2.661 0.881 4.085 0.949 6.827 1.010 14.291 1.064 114.420 1.178 INF 1.269 INF 1.405 INF 1.500 INF 1.627 INF 1.738 INF 1.887 INF 2.064 INF

10

Cooke S4 U Feet 0' 16" 0' 17" 0' 18" 0' 19" 0' 20" 0' 22" 2' 0" 2' 3" 2' 6" 2' 9" 3' 0" 3' 6" 4' 0" 4' 6" 5' 0" 5' 6" 6' 0" 7' 0" 8' 0" 10' 0" 12' 0" 15' 0" 20' 0" 30' 0" 60' 0" INF

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F

T/2 1' 3.9" 1' 4.1" 1' 4.9" 1' 5.1" 1' 5.8" 1' 6.2" 1' 6.8" 1' 7.2" 1' 7.8" 1' 8.2" 1' 9.7" 1' 10.3" 1' 11.7" 2' 0.3" 2' 2.6" 2' 3.4" 2' 5.5" 2' 6.6" 2' 8.3" 2' 9.7" 2' 11.2" 3' 0.8" 3' 4.9" 3' 7.2" 3' 10.5" 4' 1.6" 4' 4.1" 4' 8" 4' 9.6" 5' 2.6" 5' 3.1" 5' 9.2" 5' 8.6" 6' 3.8" 6' 7.3" 7' 5.3" 7' 5.9" 8' 7.1" 9' 2.4" 10' 11.5" 10' 10.3" 13' 5" 13' 3" 17' 3.6" 16' 11.7" 24' 4.4" 23' 7.6" 41' 2" 38' 10.3" 132' 6.7" 109' 3.6" INF

40mm T/2.8 1' 3.8" 1' 4.2" 1' 4.8" 1' 5.2" 1' 5.8" 1' 6.2" 1' 6.7" 1' 7.3" 1' 7.7" 1' 8.3" 1' 9.6" 1' 10.4" 1' 11.6" 2' 0.5" 2' 2.4" 2' 3.6" 2' 5.3" 2' 6.8" 2' 8.1" 2' 10" 2' 10.9" 3' 1.2" 3' 4.5" 3' 7.7" 3' 10" 4' 2.2" 4' 3.4" 4' 8.9" 4' 8.8" 5' 3.7" 5' 2.1" 5' 10.5" 5' 7.3" 6' 5.5" 6' 5.6" 7' 7.6" 7' 3.6" 8' 10.2" 8' 11" 11' 4.7" 10' 5.6" 14' 1" 12' 7.9" 18' 5.3" 16' 0.2" 26' 8.5" 21' 9.5" 48' 4.8" 34' 0.9" 257' 9.5" 78' 2" INF

T/4 1' 3.8" 1' 4.2" 1' 4.7" 1' 5.3" 1' 5.7" 1' 6.3" 1' 6.6" 1' 7.4" 1' 7.6" 1' 8.4" 1' 9.5" 1' 10.5" 1' 11.4" 2' 0.7" 2' 2.2" 2' 3.9" 2' 5" 2' 7.1" 2' 7.7" 2' 10.4" 2' 10.4" 3' 1.7" 3' 3.8" 3' 8.4" 3' 9.1" 4' 3.3" 4' 2.4" 4' 10.3" 4' 7.5" 5' 5.4" 5' 0.5" 6' 0.7" 5' 5.5" 6' 8.1" 6' 3.1" 7' 11.4" 7' 0.5" 9' 3.3" 8' 6.3" 12' 1.4" 9' 11.1" 15' 2.7" 11' 10.4" 20' 5.6" 14' 9.1" 31' 2.7" 19' 6.2" 65' 9.6" 28' 9.4" INF 54' 9.8" INF

Apertures T/5.6 1' 3.7" 1' 4.3" 1' 4.6" 1' 5.4" 1' 5.6" 1' 6.5" 1' 6.5" 1' 7.5" 1' 7.4" 1' 8.6" 1' 9.3" 1' 10.8" 1' 11.1" 2' 1" 2' 1.9" 2' 4.3" 2' 4.6" 2' 7.6" 2' 7.2" 2' 11" 2' 9.9" 3' 2.5" 3' 3" 3' 9.5" 3' 8.1" 4' 4.7" 4' 1" 5' 0.2" 4' 5.9" 5' 7.9" 4' 10.6" 6' 3.7" 5' 3.2" 6' 11.9" 6' 0.1" 8' 4.9" 6' 8.7" 9' 11" 8' 0.7" 13' 3" 9' 3.4" 17' 0.9" 10' 11.5" 23' 11.9" 13' 4.4" 40' 4.3" 17' 1.6" 126' 10.8" 23' 10.3" INF 39' 3" INF

Feet T/8 1' 3.5" 1' 4.5" 1' 4.5" 1' 5.6" 1' 5.4" 1' 6.7" 1' 6.3" 1' 7.8" 1' 7.2" 1' 8.9" 1' 9" 1' 11.1" 1' 10.8" 2' 1.4" 2' 1.4" 2' 4.8" 2' 4" 2' 8.4" 2' 6.5" 2' 12" 2' 9" 3' 3.6" 3' 1.9" 3' 11.2" 3' 6.6" 4' 7.1" 3' 11.2" 5' 3.3" 4' 3.6" 5' 11.9" 4' 7.9" 6' 8.9" 5' 0.1" 7' 6.4" 5' 8" 9' 2.6" 6' 3.5" 11' 0.9" 7' 5.3" 15' 5.1" 8' 5.7" 20' 10.9" 9' 10.1" 32' 5.2" 11' 8.7" 72' 3.3" 14' 6" INF 19' 0.1" INF 27' 6.9" INF

T/11 1' 3.4" 1' 4.7" 1' 4.3" 1' 5.8" 1' 5.2" 1' 7" 1' 6" 1' 8.1" 1' 6.9" 1' 9.2" 1' 8.7" 1' 11.6" 1' 10.4" 2' 2" 2' 0.9" 2' 5.6" 2' 3.3" 2' 9.4" 2' 5.7" 3' 1.2" 2' 8.1" 3' 5.2" 3' 0.6" 4' 1.6" 3' 4.9" 4' 10.4" 3' 9.1" 5' 7.8" 4' 1.1" 6' 5.8" 4' 4.9" 7' 4.6" 4' 8.6" 8' 4.1" 5' 3.6" 10' 5.7" 5' 10" 12' 11.6" 6' 9.6" 19' 5.4" 7' 7.8" 29' 1.9" 8' 8.8" 58' 2.9" 10' 2.1" 23007' 1.3" 12' 2.2" INF 15' 2.2" INF 20' 1.8" INF

T/16 1' 3.1" 1' 5" 1' 4" 1' 6.2" 1' 4.8" 1' 7.4" 1' 5.7" 1' 8.7" 1' 6.5" 1' 9.9" 1' 8.1" 2' 0.4" 1' 9.7" 2' 3" 2' 0" 2' 7" 2' 2.3" 2' 11.2" 2' 4.5" 3' 3.6" 2' 6.6" 3' 8.2" 2' 10.6" 4' 6.1" 3' 2.4" 5' 4.9" 3' 6" 6' 5" 3' 9.4" 7' 6.4" 4' 0.7" 8' 9.4" 4' 3.7" 10' 2.3" 4' 9.4" 13' 7.6" 5' 2.5" 18' 3" 5' 11.5" 34' 8.8" 6' 7" 87' 3.9" 7' 4.4" INF 8' 4.2" INF 9' 7.7" INF 11' 4.9" INF 13' 11.5" INF

T/22 1' 2.8" 1' 5.5" 1' 3.6" 1' 6.8" 1' 4.4" 1' 8" 1' 5.2" 1' 9.4" 1' 6" 1' 10.7" 1' 7.5" 2' 1.5" 1' 9" 2' 4.4" 1' 11.1" 2' 8.9" 2' 1.1" 3' 1.8" 2' 3.1" 3' 7" 2' 5" 4' 0.5" 2' 8.5" 5' 0.9" 2' 11.8" 6' 3.2" 3' 2.9" 7' 8.2" 3' 5.8" 9' 4.4" 3' 8.4" 11' 5.1" 3' 10.9" 13' 11.7" 4' 3.5" 21' 6.5" 4' 7.5" 36' 3.3" 5' 2.4" 857' 1.1" 5' 7.9" INF 6' 2.6" INF 6' 10.7" INF 7' 8.8" INF 8' 9.8" INF 10' 2.9" INF

11

Cooke S4 U Metres 0.40 N F 0.45 N F 0.50 N F 0.60 N F 0.70 N F 0.80 N F 0.90 N F 1.00 N F 1.10 N F 1.20 N F 1.40 N F 1.60 N F 1.80 N F 2.00 N F 2.50 N F 3.00 N F 4.00 N F 5.00 N F 7.00 N F 10.00 N F 20.00 N F INF N F

T/2 0.397 0.403 0.446 0.454 0.495 0.505 0.592 0.608 0.689 0.711 0.785 0.815 0.881 0.920 0.976 1.026 1.070 1.132 1.164 1.238 1.351 1.453 1.535 1.671 1.717 1.892 1.897 2.116 2.339 2.687 2.768 3.276 3.593 4.515 4.375 5.839 5.824 8.785 7.748 14.132 12.610 48.733 33.847 INF

40mm T/2.8 0.396 0.404 0.445 0.456 0.493 0.507 0.589 0.611 0.685 0.716 0.779 0.822 0.873 0.929 0.967 1.036 1.059 1.145 1.151 1.254 1.332 1.476 1.510 1.702 1.686 1.932 1.859 2.166 2.280 2.770 2.685 3.402 3.453 4.761 4.167 6.262 5.458 9.788 7.111 16.944 10.992 115.239 24.206 INF

T/4 0.394 0.406 0.442 0.458 0.490 0.510 0.585 0.616 0.678 0.723 0.771 0.832 0.862 0.941 0.953 1.053 1.042 1.165 1.131 1.279 1.305 1.512 1.475 1.750 1.642 1.995 1.805 2.246 2.197 2.905 2.570 3.611 3.263 5.186 3.891 7.026 4.990 11.817 6.331 24.184 9.223 INF 16.975 INF

Apertures T/5.6 0.392 0.408 0.439 0.461 0.486 0.515 0.579 0.623 0.670 0.733 0.760 0.845 0.848 0.959 0.935 1.075 1.021 1.194 1.106 1.314 1.271 1.562 1.431 1.819 1.586 2.086 1.737 2.363 2.097 3.108 2.432 3.934 3.040 5.891 3.577 8.399 4.480 16.357 5.527 56.529 7.598 INF 12.154 INF

Metres T/8 0.389 0.412 0.435 0.466 0.481 0.521 0.571 0.633 0.658 0.748 0.744 0.866 0.828 0.988 0.911 1.112 0.991 1.240 1.070 1.371 1.223 1.644 1.369 1.933 1.510 2.240 1.646 2.565 1.963 3.474 2.252 4.548 2.760 7.411 3.192 11.912 3.887 38.934 4.647 INF 6.018 INF 8.538 INF

T/11 0.385 0.417 0.430 0.473 0.474 0.530 0.560 0.647 0.644 0.769 0.726 0.895 0.805 1.026 0.881 1.161 0.956 1.302 1.029 1.449 1.168 1.761 1.300 2.100 1.426 2.470 1.545 2.875 1.818 4.080 2.062 5.661 2.476 10.982 2.816 25.188 3.340 INF 3.880 INF 4.784 INF 6.238 INF

T/16 0.379 0.425 0.421 0.484 0.463 0.545 0.544 0.672 0.622 0.806 0.697 0.947 0.768 1.097 0.837 1.256 0.904 1.424 0.967 1.604 1.088 2.001 1.200 2.458 1.305 2.988 1.403 3.611 1.622 5.781 1.811 9.645 2.118 58.687 2.359 INF 2.710 INF 3.052 INF 3.577 INF 4.321 INF

T/22 0.371 0.436 0.412 0.499 0.451 0.565 0.527 0.704 0.598 0.855 0.665 1.019 0.730 1.198 0.790 1.394 0.848 1.608 0.904 1.845 1.006 2.401 1.100 3.103 1.187 4.015 1.266 5.250 1.439 11.767 1.583 68.276 1.809 INF 1.979 INF 2.217 INF 2.437 INF 2.756 INF 3.170 INF

12

Cooke S4 U Feet 0' 20"

N F 0' 22" N F 2' 0" N F 2' 3" N F 2' 6" N F 2' 9" N F 3' 0" N F 3' 3" N F 3' 6" N F 3' 9" N F 4' 0" N F 4' 6" N F 5' 0" N F 5' 6" N F 6' 0" N F 6' 6" N F 7' 0" N F 8' 0" N F 9' 0" N F 10' 0" N F 12' 0" N F 15' 0" N F 20' 0" N F 25' 0" N F 30' 0" N F 40' 0" N F 60' 0" N F 120' 0" N F INF N F

T/2 1' 7.8" 1' 8.2" 1' 9.8" 1' 10.2" 1' 11.8" 2' 0.2" 2' 2.7" 2' 3.3" 2' 5.6" 2' 6.4" 2' 8.5" 2' 9.5" 2' 11.4" 3' 0.6" 3' 2.3" 3' 3.7" 3' 5.2" 3' 6.8" 3' 8.1" 3' 9.9" 3' 11" 4' 1.1" 4' 4.7" 4' 7.4" 4' 10.4" 5' 1.7" 5' 4" 5' 8.1" 5' 9.6" 6' 2.5" 6' 3.2" 6' 9" 6' 8.8" 7' 3.5" 7' 7.8" 8' 4.7" 8' 6.6" 9' 6" 9' 5.4" 10' 7.4" 11' 2.5" 12' 10.9" 13' 9.4" 16' 5.5" 17' 10.6" 22' 8.4" 21' 9.2" 29' 4.5" 25' 5.4" 36' 6.6" 32' 3.4" 52' 7.3" 44' 1.6" 93' 10" 69' 8.7" 433' 6.4" 165' 11.6" INF

50mm T/2.8 1' 7.8" 1' 8.2" 1' 9.7" 1' 10.3" 1' 11.7" 2' 0.3" 2' 2.6" 2' 3.4" 2' 5.5" 2' 6.6" 2' 8.3" 2' 9.7" 2' 11.2" 3' 0.8" 3' 2.1" 3' 4" 3' 4.9" 3' 7.2" 3' 7.7" 3' 10.3" 3' 10.6" 4' 1.5" 4' 4.2" 4' 8" 4' 9.7" 5' 2.5" 5' 3.3" 5' 9" 5' 8.7" 6' 3.6" 6' 2.2" 6' 10.3" 6' 7.5" 7' 5" 7' 6.2" 8' 6.7" 8' 4.7" 9' 8.5" 9' 3" 10' 10.7" 10' 11.1" 13' 3.8" 13' 4.2" 17' 1.5" 17' 1.9" 23' 11.9" 20' 8.4" 31' 7.2" 23' 12" 40' 0.7" 29' 11.7" 60' 2.7" 39' 11.1" 121' 2.9" 59' 8.8" INF 118' 7.4" INF

T/4 1' 7.7" 1' 8.3" 1' 9.6" 1' 10.4" 1' 11.5" 2' 0.5" 2' 2.4" 2' 3.6" 2' 5.2" 2' 6.8" 2' 8.1" 2' 10" 2' 10.9" 3' 1.2" 3' 1.7" 3' 4.4" 3' 4.5" 3' 7.7" 3' 7.2" 3' 10.9" 3' 10" 4' 2.2" 4' 3.4" 4' 8.9" 4' 8.8" 5' 3.6" 5' 2.1" 5' 10.4" 5' 7.4" 6' 5.3" 6' 0.6" 7' 0.3" 6' 5.8" 7' 7.4" 7' 3.9" 8' 9.8" 8' 1.8" 10' 0.6" 8' 11.5" 11' 3.9" 10' 6.3" 13' 11.7" 12' 9" 18' 2.8" 16' 2.1" 26' 3" 19' 3.4" 35' 7.7" 22' 1.3" 46' 9.7" 27' 0.9" 76' 11.3" 34' 11.1" 216' 0.3" 49' 2.2" INF 83' 1.3" INF

Apertures T/5.6 T/8 1' 7.6" 1' 7.4" 1' 8.5" 1' 8.7" 1' 9.5" 1' 9.2" 1' 10.6" 1' 10.8" 1' 11.4" 1' 11.1" 2' 0.7" 2' 1" 2' 2.2" 2' 1.8" 2' 3.9" 2' 4.3" 2' 5" 2' 4.5" 2' 7.1" 2' 7.7" 2' 7.7" 2' 7.2" 2' 10.4" 2' 11" 2' 10.5" 2' 9.8" 3' 1.7" 3' 2.5" 3' 1.2" 3' 0.5" 3' 5" 3' 6" 3' 3.9" 3' 3" 3' 8.4" 3' 9.5" 3' 6.6" 3' 5.6" 3' 11.8" 4' 1.1" 3' 9.2" 3' 8.1" 4' 3.2" 4' 4.7" 4' 2.5" 4' 1.1" 4' 10.1" 5' 0.1" 4' 7.6" 4' 6" 5' 5.1" 5' 7.6" 5' 0.7" 4' 10.7" 6' 0.3" 6' 3.4" 5' 5.7" 5' 3.4" 6' 7.6" 6' 11.5" 5' 10.7" 5' 8" 7' 3.1" 7' 7.7" 6' 3.5" 6' 0.4" 7' 10.7" 8' 4.2" 7' 1" 6' 9.1" 9' 2.3" 9' 9.9" 7' 10.3" 7' 5.4" 10' 6.6" 11' 4.8" 8' 7.2" 8' 1.4" 11' 11.5" 13' 0.8" 10' 0.4" 9' 4.5" 14' 11.5" 16' 8.9" 12' 0.4" 11' 1.2" 19' 11.6" 23' 3.5" 15' 0.3" 13' 7.1" 30' 0.1" 38' 3.3" 17' 8" 15' 8.5" 42' 11.9" 62' 3.9" 20' 0.2" 17' 6.3" 60' 4.8" 107' 3.2" 23' 11.9" 20' 6" 122' 3.9" 1086' 8.3" 29' 11.3" 24' 8.1" INF INF 39' 9.9" 30' 12" INF INF 59' 5.2" 41' 8.2" INF INF

Feet T/11 1' 7.2" 1' 8.9" 1' 9" 1' 11.1" 1' 10.8" 2' 1.4" 2' 1.4" 2' 4.8" 2' 4" 2' 8.3" 2' 6.6" 2' 11.9" 2' 9.1" 3' 3.5" 2' 11.6" 3' 7.2" 3' 2.1" 3' 11" 3' 4.5" 4' 2.8" 3' 6.8" 4' 6.7" 3' 11.5" 5' 2.7" 4' 4" 5' 11.1" 4' 8.4" 6' 7.8" 5' 0.7" 7' 4.8" 5' 4.9" 8' 2.2" 5' 8.9" 9' 0.1" 6' 4.7" 10' 9.1" 7' 0" 12' 8.1" 7' 7.1" 14' 9.3" 8' 8.1" 19' 8.2" 10' 1.4" 29' 5.4" 12' 1.7" 58' 5.8" 13' 9.6" 143' 1.9" 15' 2.2" 4123' 2.8" 17' 4.2" INF 20' 2.9" INF 24' 3.6" INF 30' 4.6" INF

T/16 1' 6.8" 1' 9.4" 1' 8.6" 1' 11.7" 1' 10.3" 2' 2.1" 2' 0.8" 2' 5.8" 2' 3.2" 2' 9.5" 2' 5.6" 3' 1.4" 2' 8" 3' 5.4" 2' 10.3" 3' 9.4" 3' 0.5" 4' 1.6" 3' 2.7" 4' 6" 3' 4.9" 4' 10.4" 3' 9.1" 5' 7.8" 4' 1.1" 6' 5.7" 4' 5" 7' 4.2" 4' 8.7" 8' 3.5" 5' 0.3" 9' 3.6" 5' 3.8" 10' 4.5" 5' 10.3" 12' 9.4" 6' 4.4" 15' 7.2" 6' 10.2" 18' 11.3" 7' 8.5" 27' 10.7" 8' 9.9" 52' 10.7" 10' 3.9" 510' 0.2" 11' 5.9" INF 12' 5.1" INF 13' 10" INF 15' 7.2" INF 17' 10.7" INF 20' 11.6" INF

T/22 1' 6.4" 1' 9.9" 1' 8.1" 2' 0.4" 1' 9.7" 2' 3" 2' 0" 2' 7" 2' 2.3" 2' 11.1" 2' 4.5" 3' 3.4" 2' 6.7" 3' 7.8" 2' 8.8" 4' 0.5" 2' 10.8" 4' 5.4" 3' 0.8" 4' 10.4" 3' 2.8" 5' 3.7" 3' 6.5" 6' 3" 3' 10" 7' 3.5" 4' 1.4" 8' 5.2" 4' 4.6" 9' 8.5" 4' 7.6" 11' 1.5" 4' 10.6" 12' 8.6" 5' 4" 16' 6.7" 5' 9" 21' 7.9" 6' 1.6" 28' 8.9" 6' 9.8" 56' 4.3" 7' 8" 1446' 3.2" 8' 9.1" INF 9' 6.9" INF 10' 2.6" INF 11' 1.7" INF 12' 3.1" INF 13' 7.4" INF 15' 3.8" INF

13

Cooke S4 U Metres 0.55 N F 0.60 N F 0.65 N F 0.70 N F 0.80 N F 0.90 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.40 N F 1.60 N F 1.80 N F 2.00 N F 2.20 N F 2.50 N F 3.00 N F 3.50 N F 4.00 N F 5.00 N F 7.00 N F 10.00 N F 20.00 N F INF N F

T/2 0.545 0.555 0.594 0.606 0.643 0.657 0.692 0.708 0.789 0.811 0.886 0.914 0.983 1.018 1.079 1.122 1.175 1.226 1.270 1.331 1.366 1.436 1.555 1.648 1.743 1.862 1.929 2.077 2.114 2.294 2.389 2.623 2.840 3.180 3.283 3.748 3.718 4.329 4.565 5.528 6.172 8.089 8.385 12.394 14.418 32.696 51.394 INF

50mm T/2.8 0.543 0.557 0.592 0.608 0.641 0.660 0.689 0.712 0.785 0.815 0.881 0.920 0.976 1.025 1.071 1.131 1.165 1.237 1.259 1.344 1.352 1.451 1.537 1.668 1.721 1.887 1.902 2.109 2.081 2.334 2.347 2.675 2.781 3.258 3.204 3.858 3.616 4.477 4.412 5.773 5.893 8.626 7.878 13.709 12.973 43.855 36.732 INF

T/4 0.541 0.560 0.589 0.612 0.637 0.664 0.684 0.717 0.779 0.822 0.873 0.929 0.966 1.036 1.059 1.144 1.151 1.254 1.242 1.364 1.333 1.475 1.512 1.699 1.689 1.928 1.863 2.160 2.034 2.396 2.287 2.758 2.697 3.383 3.092 4.036 3.474 4.719 4.201 6.184 5.521 9.584 7.223 16.309 11.279 89.995 25.735 INF

Apertures T/5.6 0.537 0.564 0.584 0.617 0.631 0.670 0.678 0.723 0.771 0.832 0.863 0.941 0.954 1.051 1.044 1.163 1.133 1.277 1.221 1.391 1.308 1.507 1.480 1.743 1.648 1.984 1.813 2.232 1.975 2.485 2.212 2.878 2.592 3.566 2.955 4.300 3.301 5.086 3.949 6.833 5.092 11.252 6.503 21.846 9.610 INF 18.404 INF

Metres T/8 0.532 0.570 0.578 0.624 0.624 0.679 0.669 0.734 0.759 0.846 0.848 0.960 0.935 1.075 1.021 1.193 1.106 1.313 1.190 1.434 1.272 1.558 1.434 1.812 1.591 2.076 1.744 2.349 1.893 2.633 2.109 3.078 2.450 3.881 2.771 4.770 3.072 5.760 3.625 8.116 4.562 15.243 5.660 44.651 7.869 INF 12.906 INF

T/11 0.525 0.578 0.570 0.634 0.615 0.690 0.659 0.748 0.745 0.865 0.830 0.984 0.913 1.107 0.995 1.232 1.075 1.361 1.154 1.493 1.231 1.628 1.381 1.908 1.525 2.204 1.665 2.515 1.799 2.844 1.993 3.373 2.294 4.366 2.572 5.529 2.829 6.909 3.288 10.618 4.039 27.479 4.873 INF 6.420 INF 9.407 INF

T/16 0.515 0.591 0.558 0.650 0.600 0.711 0.641 0.772 0.723 0.898 0.802 1.029 0.879 1.164 0.954 1.305 1.027 1.450 1.098 1.602 1.167 1.759 1.300 2.094 1.427 2.457 1.548 2.853 1.663 3.287 1.826 4.019 2.075 5.524 2.298 7.540 2.500 10.382 2.850 21.981 3.394 INF 3.961 INF 4.920 INF 6.492 INF

T/22 0.503 0.608 0.544 0.672 0.583 0.737 0.622 0.804 0.698 0.942 0.771 1.088 0.841 1.242 0.909 1.404 0.975 1.576 1.038 1.758 1.100 1.950 1.216 2.373 1.326 2.855 1.429 3.408 1.526 4.049 1.661 5.231 1.863 8.133 2.039 13.468 2.196 26.509 2.460 INF 2.852 INF 3.239 INF 3.849 INF 4.742 INF

14

Cooke S4 U Feet 2' 6" 2' 9" 3' 0" 3' 3" 3' 6" 3' 9" 4' 0" 4' 3" 4' 6" 4' 9" 5' 0" 5' 6" 6' 0" 6' 6" 7' 0" 7' 6" 8' 0"

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N

N F 8' 6" N F 9' 0" N F 10' 0" N F 11' 0" N F 12' 0" N F 13' 0" N F 15' 0" N F 17' 0" N F 20' 0" N F 25' 0" N F 30' 0" N F 40' 0" N F 60' 0" N F 120' 0" N F INF N F

T/2 2' 5.8" 2' 6.2" 2' 8.8" 2' 9.2" 2' 11.8" 3' 0.2" 3' 2.7" 3' 3.3" 3' 5.7" 3' 6.3" 3' 8.6" 3' 9.4" 3' 11.6" 4' 0.4" 4' 2.5" 4' 3.5" 4' 5.4" 4' 6.6" 4' 8.4" 4' 9.6" 4' 11.3" 5' 0.7" 5' 5.1" 5' 6.9" 5' 11" 6' 1.1" 6' 4.8" 6' 7.3" 6' 10.6" 7' 1.5" 7' 4.4" 7' 7.7" 7' 10.1" 8' 1.9" 8' 3.9" 8' 8.2" 8' 9.6" 9' 2.5" 9' 9.1" 10' 3.1" 10' 8.5" 11' 3.7" 11' 7.8" 12' 4.5" 12' 7.1" 13' 5.3" 14' 5.4" 15' 7.1" 16' 3.6" 17' 9.2" 19' 0.4" 21' 0.9" 23' 6" 26' 8.5" 27' 10.3" 32' 6" 36' 3.3" 44' 7.1" 51' 11.6" 70' 11.9" 91' 7" 174' 1.4" 385' 4.9" INF

75mm T/2.8 2' 5.8" 2' 6.2" 2' 8.7" 2' 9.3" 2' 11.7" 3' 0.3" 3' 2.6" 3' 3.4" 3' 5.5" 3' 6.5" 3' 8.5" 3' 9.5" 3' 11.4" 4' 0.6" 4' 2.3" 4' 3.7" 4' 5.2" 4' 6.8" 4' 8.1" 4' 9.9" 4' 11" 5' 1" 5' 4.8" 5' 7.2" 5' 10.6" 6' 1.5" 6' 4.3" 6' 7.8" 6' 10" 7' 2.1" 7' 3.7" 7' 8.4" 7' 9.4" 8' 2.7" 8' 3.1" 8' 9.1" 8' 8.7" 9' 3.5" 9' 8" 10' 4.3" 10' 7.1" 11' 5.3" 11' 6.2" 12' 6.3" 12' 5.2" 13' 7.5" 14' 2.9" 15' 10.1" 16' 0.4" 18' 1.1" 18' 8.1" 21' 6.4" 22' 11.4" 27' 5.5" 27' 1.1" 33' 7.4" 34' 11.7" 46' 8.8" 49' 3.9" 76' 7.4" 83' 8" 212' 6" 275' 4.6" INF

T/4 2' 5.7" 2' 6.3" 2' 8.6" 2' 9.4" 2' 11.5" 3' 0.5" 3' 2.4" 3' 3.6" 3' 5.3" 3' 6.7" 3' 8.2" 3' 9.8" 3' 11.1" 4' 0.9" 4' 2" 4' 4" 4' 4.9" 4' 7.2" 4' 7.8" 4' 10.3" 4' 10.6" 5' 1.5" 5' 4.3" 5' 7.8" 5' 10" 6' 2.1" 6' 3.6" 6' 8.5" 6' 9.2" 7' 3" 7' 2.8" 7' 9.4" 7' 8.4" 8' 3.9" 8' 1.9" 8' 10.5" 8' 7.4" 9' 5" 9' 6.3" 10' 6.3" 10' 5.1" 11' 7.7" 11' 3.8" 12' 9.2" 12' 2.4" 13' 10.9" 13' 11.3" 16' 2.8" 15' 7.8" 18' 7.3" 18' 1.9" 22' 3.2" 22' 2.1" 28' 8" 26' 0.1" 35' 5.5" 33' 2.3" 50' 4.5" 45' 10.1" 86' 11.5" 74' 0.9" 317' 7.3" 192' 10.4" INF

Apertures T/5.6 2' 5.6" 2' 6.5" 2' 8.5" 2' 9.6" 2' 11.3" 3' 0.7" 3' 2.2" 3' 3.8" 3' 5.1" 3' 7" 3' 7.9" 3' 10.1" 3' 10.8" 4' 1.3" 4' 1.6" 4' 4.5" 4' 4.5" 4' 7.6" 4' 7.3" 4' 10.9" 4' 10.1" 5' 2.1" 5' 3.7" 5' 8.5" 5' 9.2" 6' 3" 6' 2.7" 6' 9.6" 6' 8.2" 7' 4.2" 7' 1.6" 7' 10.9" 7' 7" 8' 5.6" 8' 0.4" 9' 0.4" 8' 5.7" 9' 7.2" 9' 4.2" 10' 9" 10' 2.6" 11' 11" 11' 0.8" 13' 1.3" 11' 11" 14' 3.7" 13' 6.8" 16' 9.4" 15' 2.1" 19' 4" 17' 6.1" 23' 4" 21' 2.6" 30' 5.5" 24' 8.4" 38' 3" 31' 0.9" 56' 2.7" 41' 10.7" 106' 0.8" 64' 3.1" 934' 10.2" 137' 10.3" INF

Feet T/8 2' 5.4" 2' 6.7" 2' 8.2" 2' 9.8" 2' 11.1" 3' 1" 3' 1.9" 3' 4.2" 3' 4.7" 3' 7.4" 3' 7.5" 3' 10.6" 3' 10.3" 4' 1.9" 4' 1.1" 4' 5.1" 4' 3.8" 4' 8.4" 4' 6.6" 4' 11.7" 4' 9.3" 5' 3" 5' 2.7" 5' 9.7" 5' 8.1" 6' 4.4" 6' 1.4" 6' 11.3" 6' 6.6" 7' 6.2" 6' 11.9" 8' 1.2" 7' 5" 8' 8.2" 7' 10.1" 9' 3.4" 8' 3.2" 9' 10.6" 9' 1.2" 11' 1.3" 9' 11" 12' 4.4" 10' 8.6" 13' 7.8" 11' 6" 14' 11.5" 13' 0.4" 17' 8.3" 14' 6.1" 20' 6.6" 16' 7.5" 25' 1.6" 19' 11.1" 33' 7.4" 22' 11.6" 43' 4.5" 28' 4.5" 68' 1.2" 37' 1.3" 158' 4.2" 53' 7.4" INF 96' 7.2" INF

T/11 2' 5.2" 2' 6.9" 2' 8" 2' 10.1" 2' 10.7" 3' 1.4" 3' 1.5" 3' 4.6" 3' 4.2" 3' 7.9" 3' 7" 3' 11.2" 3' 9.7" 4' 2.6" 4' 0.4" 4' 6" 4' 3" 4' 9.3" 4' 5.7" 5' 0.8" 4' 8.3" 5' 4.2" 5' 1.6" 5' 11.2" 5' 6.7" 6' 6.3" 5' 11.8" 7' 1.4" 6' 4.8" 7' 8.8" 6' 9.8" 8' 4.2" 7' 2.7" 8' 11.7" 7' 7.5" 9' 7.4" 8' 0.3" 10' 3.2" 8' 9.6" 11' 7.1" 9' 6.7" 12' 11.6" 10' 3.6" 14' 4.7" 11' 0.3" 15' 10.4" 12' 5.1" 18' 11.6" 13' 9.1" 22' 3.7" 15' 7.7" 27' 9.8" 18' 6.3" 38' 7.5" 21' 1.4" 52' 1.6" 25' 7.2" 92' 7.3" 32' 5.8" 414' 0.6" 44' 5.3" INF 70' 4.1" INF

T/16 2' 4.8" 2' 7.3" 2' 7.5" 2' 10.7" 2' 10.2" 3' 2" 3' 0.9" 3' 5.4" 3' 3.5" 3' 8.9" 3' 6.1" 4' 0.4" 3' 8.7" 4' 3.9" 3' 11.3" 4' 7.4" 4' 1.8" 4' 11" 4' 4.3" 5' 2.7" 4' 6.8" 5' 6.3" 4' 11.7" 6' 1.8" 5' 4.6" 6' 9.5" 5' 9.3" 7' 5.4" 6' 2" 8' 1.4" 6' 6.5" 8' 9.6" 6' 11" 9' 6.1" 7' 3.4" 10' 2.7" 7' 7.8" 10' 11.6" 8' 4.2" 12' 6.1" 9' 0.3" 14' 1.5" 9' 8.2" 15' 10" 10' 3.9" 17' 7.7" 11' 6.4" 21' 7" 12' 8" 26' 0.4" 14' 2.9" 33' 10.5" 16' 7" 51' 5.6" 18' 7.5" 78' 8.6" 22' 0.2" 232' 7.8" 26' 10.9" INF 34' 7.3" INF 48' 5.6" INF

T/22 2' 4.4" 2' 7.9" 2' 7" 2' 11.3" 2' 9.6" 3' 2.9" 3' 0.1" 3' 6.4" 3' 2.7" 3' 10.1" 3' 5.1" 4' 1.8" 3' 7.6" 4' 5.5" 3' 10" 4' 9.3" 4' 0.4" 5' 1.2" 4' 2.8" 5' 5.1" 4' 5.1" 5' 9.1" 4' 9.7" 6' 5.3" 5' 2.2" 7' 1.8" 5' 6.6" 7' 10.6" 5' 10.8" 8' 7.7" 6' 3" 9' 5.1" 6' 7.1" 10' 2.8" 6' 11" 11' 1" 7' 2.9" 11' 11.5" 7' 10.4" 13' 9.8" 8' 5.6" 15' 10" 9' 0.5" 18' 0.2" 9' 7" 20' 4.8" 10' 7.4" 25' 10.6" 11' 6.8" 32' 7" 12' 10.4" 45' 11.4" 14' 8.9" 85' 10.8" 16' 3.9" 204' 3.7" 18' 10.4" INF 22' 4" INF 27' 4.4" INF 35' 4.1" INF

15

Cooke S4 U Metres 0.80 N F 0.85 N F 0.90 N F 0.95 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.40 N F 1.50 N F 1.60 N F 1.80 N F 2.00 N F 2.20 N F 2.50 N F 3.00 N F 3.50 N F 4.00 N F 4.50 N F 5.00 N F 6.00 N F 7.00 N F 10.00 N F 20.00 N F 50.00 N F INF N F

T/2 0.796 0.804 0.845 0.855 0.894 0.906 0.944 0.957 0.993 1.007 1.091 1.109 1.189 1.211 1.287 1.313 1.385 1.415 1.483 1.517 1.581 1.620 1.775 1.826 1.969 2.032 2.162 2.239 2.451 2.551 2.930 3.074 3.404 3.602 3.874 4.134 4.341 4.671 4.804 5.213 5.719 6.311 6.619 7.429 9.236 10.904 17.145 24.004 35.264 85.997 119.350 INF

75mm T/2.8 0.794 0.806 0.843 0.857 0.892 0.908 0.941 0.959 0.990 1.010 1.088 1.113 1.185 1.215 1.282 1.318 1.379 1.421 1.476 1.525 1.573 1.628 1.765 1.836 1.957 2.045 2.148 2.255 2.432 2.572 2.902 3.105 3.367 3.644 3.826 4.191 4.281 4.744 4.730 5.304 5.613 6.445 6.478 7.615 8.962 11.313 16.220 26.096 31.549 120.837 85.279 INF

T/4 0.791 0.809 0.840 0.860 0.889 0.912 0.937 0.963 0.986 1.015 1.082 1.118 1.179 1.222 1.275 1.326 1.371 1.430 1.466 1.535 1.562 1.640 1.751 1.852 1.939 2.065 2.126 2.279 2.405 2.604 2.862 3.152 3.313 3.710 3.756 4.278 4.193 4.857 4.623 5.446 5.463 6.657 6.278 7.914 8.581 11.989 15.006 30.025 27.247 308.410 59.725 INF

Apertures T/5.6 0.788 0.813 0.836 0.865 0.884 0.916 0.932 0.969 0.980 1.021 1.076 1.126 1.171 1.231 1.265 1.337 1.360 1.443 1.453 1.550 1.547 1.657 1.732 1.874 1.916 2.092 2.098 2.313 2.368 2.648 2.811 3.217 3.244 3.802 3.667 4.401 4.082 5.016 4.488 5.648 5.274 6.962 6.029 8.351 8.122 13.027 13.647 37.576 23.059 INF 42.690 INF

Metres T/8 0.783 0.818 0.830 0.871 0.878 0.924 0.925 0.977 0.972 1.030 1.066 1.137 1.159 1.245 1.251 1.353 1.343 1.462 1.434 1.572 1.525 1.683 1.705 1.907 1.882 2.134 2.058 2.365 2.316 2.717 2.737 3.321 3.145 3.948 3.542 4.599 3.926 5.277 4.300 5.981 5.015 7.478 5.692 9.107 7.518 14.977 12.016 60.403 18.745 INF 29.913 INF

T/11 0.776 0.825 0.823 0.879 0.869 0.933 0.916 0.987 0.962 1.042 1.053 1.152 1.144 1.262 1.234 1.374 1.323 1.487 1.411 1.602 1.499 1.717 1.672 1.951 1.842 2.190 2.009 2.433 2.255 2.809 2.651 3.460 3.031 4.148 3.396 4.875 3.748 5.643 4.086 6.458 4.726 8.243 5.321 10.271 6.881 18.434 10.458 252.813 15.199 INF 21.782 INF

T/16 0.766 0.837 0.811 0.893 0.856 0.949 0.901 1.005 0.945 1.062 1.033 1.177 1.120 1.293 1.206 1.411 1.291 1.531 1.375 1.653 1.457 1.776 1.620 2.029 1.778 2.289 1.933 2.558 2.159 2.977 2.518 3.722 2.858 4.532 3.180 5.417 3.485 6.386 3.774 7.453 4.312 9.945 4.801 13.065 6.032 30.019 8.605 INF 11.565 INF 15.007 INF

T/22 0.754 0.853 0.798 0.911 0.841 0.969 0.884 1.028 0.927 1.088 1.011 1.209 1.093 1.332 1.175 1.459 1.255 1.587 1.333 1.719 1.411 1.854 1.562 2.131 1.708 2.422 1.850 2.725 2.055 3.208 2.376 4.095 2.675 5.102 2.954 6.255 3.215 7.590 3.459 9.152 3.904 13.240 4.299 19.442 5.256 123.922 7.101 INF 8.995 INF 10.942 INF

16

Cooke S4 U Feet 3' 0"

N F 3' 3" N F 3' 6" N F 3' 9" N F 4' 0" N F 4' 3" N F 4' 6" N F 4' 9" N F 5' 0" N F 5' 6" N F 6' 0" N F 6' 6" N F 7' 0" N F 7' 6" N F 8' 0" N F 8' 6" N F 9' 0" N F 10' 0" N F 11' 0" N F 12' 0" N F 13' 0" N F 15' 0" N F 17' 0" N F 20' 0" N F 25' 0" N F 30' 0" N F 40' 0" N F 60' 0" N F 120' 0" N F INF N F

T/2 2' 11.9" 3' 0.1" 3' 2.8" 3' 3.2" 3' 5.8" 3' 6.2" 3' 8.8" 3' 9.2" 3' 11.8" 4' 0.2" 4' 2.7" 4' 3.3" 4' 5.7" 4' 6.3" 4' 8.7" 4' 9.4" 4' 11.6" 5' 0.4" 5' 5.5" 5' 6.5" 5' 11.4" 6' 0.6" 6' 5.3" 6' 6.7" 6' 11.2" 7' 0.8" 7' 5.1" 7' 6.9" 7' 11" 8' 1.1" 8' 4.8" 8' 7.2" 8' 10.7" 9' 1.4" 9' 10.3" 10' 1.7" 10' 10" 11' 2.1" 11' 9.6" 12' 2.5" 12' 9.2" 13' 2.9" 14' 8.2" 15' 3.9" 16' 7.1" 17' 5.1" 19' 5.3" 20' 7.1" 24' 1.5" 25' 11.3" 28' 8.9" 31' 4.5" 37' 9.5" 42' 5.9" 55' 1.6" 65' 9.7" 101' 11.2" 145' 10.7" 673' 10.4" INF

100mm T/2.8 2' 11.8" 3' 0.2" 3' 2.8" 3' 3.2" 3' 5.7" 3' 6.3" 3' 8.7" 3' 9.3" 3' 11.7" 4' 0.3" 4' 2.6" 4' 3.4" 4' 5.6" 4' 6.4" 4' 8.5" 4' 9.5" 4' 11.5" 5' 0.6" 5' 5.3" 5' 6.7" 5' 11.2" 6' 0.8" 6' 5.1" 6' 7" 6' 10.9" 7' 1.1" 7' 4.7" 7' 7.3" 7' 10.5" 8' 1.5" 8' 4.4" 8' 7.7" 8' 10.1" 9' 1.9" 9' 9.7" 10' 2.4" 10' 9.2" 11' 2.9" 11' 8.7" 12' 3.5" 12' 8.1" 13' 4.1" 14' 6.8" 15' 5.6" 16' 5.3" 17' 7.2" 19' 2.7" 20' 10.1" 23' 9.5" 26' 4.1" 28' 3.3" 31' 11.5" 36' 11.7" 43' 6.9" 53' 4.9" 68' 5.6" 96' 1.8" 159' 8.2" 481' 5.5" INF

T/4 2' 11.7" 3' 0.3" 3' 2.7" 3' 3.3" 3' 5.6" 3' 6.4" 3' 8.6" 3' 9.4" 3' 11.5" 4' 0.5" 4' 2.5" 4' 3.6" 4' 5.4" 4' 6.6" 4' 8.3" 4' 9.7" 4' 11.2" 5' 0.8" 5' 5.1" 5' 7" 5' 10.9" 6' 1.2" 6' 4.7" 6' 7.4" 6' 10.4" 7' 1.6" 7' 4.2" 7' 7.9" 7' 9.9" 8' 2.2" 8' 3.7" 8' 8.5" 8' 9.4" 9' 2.8" 9' 8.7" 10' 3.5" 10' 8" 11' 4.2" 11' 7.3" 12' 5.1" 12' 6.5" 13' 6" 14' 4.6" 15' 8.1" 16' 2.5" 17' 10.5" 18' 10.9" 21' 2.7" 23' 3.7" 26' 11.5" 27' 7.1" 32' 10.5" 35' 9.7" 45' 3.8" 51' 0.1" 72' 10.6" 88' 7.3" 186' 1.2" 337' 1.9" INF

Apertures T/5.6 2' 11.6" 3' 0.4" 3' 2.6" 3' 3.4" 3' 5.5" 3' 6.5" 3' 8.4" 3' 9.6" 3' 11.3" 4' 0.7" 4' 2.2" 4' 3.8" 4' 5.1" 4' 6.9" 4' 8" 4' 10" 4' 10.9" 5' 1.1" 5' 4.7" 5' 7.4" 5' 10.4" 6' 1.7" 6' 4.1" 6' 8" 6' 9.8" 7' 2.3" 7' 3.5" 7' 8.7" 7' 9.1" 8' 3.1" 8' 2.8" 8' 9.5" 8' 8.4" 9' 3.9" 9' 7.5" 10' 4.9" 10' 6.5" 11' 6" 11' 5.5" 12' 7.2" 12' 4.4" 13' 8.5" 14' 1.8" 15' 11.5" 15' 11" 18' 3" 18' 6.1" 21' 9.1" 22' 8.4" 27' 10" 26' 8.8" 34' 2.3" 34' 4.5" 47' 10.3" 48' 1.5" 79' 8.9" 80' 2.8" 238' 9.7" 240' 11.4" INF

Feet T/8 2' 11.5" 3' 0.5" 3' 2.4" 3' 3.6" 3' 5.3" 3' 6.7" 3' 8.2" 3' 9.9" 3' 11.1" 4' 1" 4' 1.9" 4' 4.1" 4' 4.8" 4' 7.3" 4' 7.6" 4' 10.4" 4' 10.5" 5' 1.6" 5' 4.1" 5' 8" 5' 9.8" 6' 2.4" 6' 3.4" 6' 8.8" 6' 8.9" 7' 3.3" 7' 2.5" 7' 9.9" 7' 8" 8' 4.4" 8' 1.4" 8' 11" 8' 6.9" 9' 5.7" 9' 5.7" 10' 7.1" 10' 4.3" 11' 8.7" 11' 2.9" 12' 10.5" 12' 1.3" 14' 0.5" 13' 9.8" 16' 4.9" 15' 5.9" 18' 10.1" 17' 11.2" 22' 7.4" 21' 10.1" 29' 3.1" 25' 6.6" 36' 4.5" 32' 5.1" 52' 3.3" 44' 4.5" 92' 10.5" 70' 3.3" 415' 7.9" 168' 9.6" INF

T/11 2' 11.3" 3' 0.7" 3' 2.2" 3' 3.9" 3' 5" 3' 7" 3' 7.9" 3' 10.2" 3' 10.7" 4' 1.4" 4' 1.5" 4' 4.6" 4' 4.3" 4' 7.8" 4' 7.1" 4' 11" 4' 9.9" 5' 2.2" 5' 3.5" 5' 8.8" 5' 9" 6' 3.3" 6' 2.4" 6' 10" 6' 7.8" 7' 4.7" 7' 1.2" 7' 11.4" 7' 6.5" 8' 6.2" 7' 11.8" 9' 1.1" 8' 5.1" 9' 8" 9' 3.5" 10' 10" 10' 1.7" 12' 0.3" 10' 11.8" 13' 2.9" 11' 9.7" 14' 5.7" 13' 5.1" 17' 0.1" 14' 12" 19' 7.7" 17' 3.2" 23' 9.5" 20' 10.3" 31' 3.1" 24' 2.4" 39' 6.5" 30' 3.4" 59' 1.2" 40' 5.3" 116' 12" 60' 10.3" 5719' 4.1" 122' 10.7" INF

T/16 2' 11" 3' 1.1" 3' 1.8" 3' 4.3" 3' 4.6" 3' 7.5" 3' 7.4" 3' 10.8" 3' 10.2" 4' 2" 4' 0.9" 4' 5.3" 4' 3.6" 4' 8.6" 4' 6.3" 4' 12" 4' 9" 5' 3.3" 5' 2.4" 5' 10.1" 5' 7.7" 6' 5" 6' 0.9" 6' 11.9" 6' 6.1" 7' 7" 6' 11.2" 8' 2.1" 7' 4.3" 8' 9.3" 7' 9.3" 9' 4.6" 8' 2.2" 10' 0.1" 8' 12" 11' 3.2" 9' 9.5" 12' 6.8" 10' 6.9" 13' 10.7" 11' 4" 15' 3.2" 12' 9.8" 18' 1.5" 14' 2.8" 21' 1.8" 16' 3.2" 26' 0.5" 19' 4.8" 35' 3.6" 22' 3.1" 46' 3.1" 27' 3.4" 75' 7.2" 35' 3" 206' 9" 49' 9.2" INF 84' 7.5" INF

T/22 2' 10.7" 3' 1.5" 3' 1.4" 3' 4.8" 3' 4.1" 3' 8.1" 3' 6.8" 3' 11.4" 3' 9.5" 4' 2.8" 4' 0.2" 4' 6.3" 4' 2.8" 4' 9.7" 4' 5.4" 5' 1.2" 4' 8" 5' 4.7" 5' 1.1" 5' 11.8" 5' 6.2" 6' 7" 5' 11.2" 7' 2.4" 6' 4.1" 7' 9.9" 6' 8.9" 8' 5.5" 7' 1.7" 9' 1.3" 7' 6.4" 9' 9.3" 7' 11" 10' 5.4" 8' 8.1" 11' 10" 9' 4.9" 13' 3.3" 10' 1.5" 14' 9.3" 10' 9.8" 16' 4.1" 12' 1.9" 19' 8" 13' 5.1" 23' 3.6" 15' 2.5" 29' 4.8" 17' 10.9" 41' 9.6" 20' 3.7" 58' 2" 24' 4.8" 113' 10.8" 30' 6.7" 2719' 6.6" 40' 10.3" INF 61' 8" INF

17

Cooke S4 U Metres 0.95 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.40 N F 1.50 N F 1.60 N F 1.80 N F 2.00 N F 2.20 N F 2.50 N F 3.00 N F 3.50 N F 4.00 N F 4.50 N F 5.00 N F 6.00 N F 7.00 N F 10.00 N F 20.00 N F 50.00 N F INF N F

T/2 0.947 0.953 0.996 1.004 1.095 1.105 1.194 1.206 1.293 1.307 1.392 1.408 1.491 1.510 1.589 1.611 1.786 1.814 1.983 2.018 2.179 2.222 2.472 2.528 2.960 3.041 3.445 3.557 3.928 4.075 4.409 4.595 4.887 5.118 5.837 6.173 6.778 7.237 9.550 10.495 18.265 22.103 40.362 65.711 208.678 INF

100mm T/2.8 0.945 0.955 0.995 1.005 1.093 1.107 1.192 1.208 1.290 1.310 1.389 1.412 1.487 1.513 1.585 1.615 1.781 1.820 1.976 2.025 2.171 2.230 2.462 2.540 2.944 3.058 3.424 3.580 3.900 4.105 4.373 4.635 4.843 5.168 5.774 6.244 6.694 7.336 9.382 10.707 17.653 23.074 37.476 75.166 149.095 INF

T/4 0.943 0.957 0.992 1.008 1.090 1.110 1.188 1.212 1.286 1.314 1.384 1.417 1.481 1.519 1.579 1.622 1.773 1.828 1.966 2.036 2.158 2.244 2.446 2.557 2.921 3.084 3.392 3.615 3.859 4.152 4.321 4.695 4.779 5.243 5.683 6.355 6.570 7.491 9.140 11.042 16.808 24.703 33.847 95.875 104.407 INF

Apertures T/5.6 0.940 0.960 0.989 1.011 1.087 1.114 1.184 1.217 1.281 1.320 1.378 1.423 1.474 1.527 1.570 1.631 1.762 1.840 1.952 2.050 2.142 2.261 2.425 2.581 2.891 3.118 3.351 3.664 3.805 4.217 4.254 4.778 4.696 5.347 5.566 6.510 6.413 7.708 8.836 11.523 15.801 27.274 29.980 151.623 74.616 INF

Metres T/8 0.936 0.964 0.985 1.016 1.081 1.120 1.177 1.224 1.273 1.328 1.368 1.434 1.463 1.539 1.558 1.645 1.746 1.858 1.933 2.073 2.118 2.289 2.394 2.617 2.846 3.172 3.291 3.739 3.727 4.317 4.156 4.908 4.578 5.511 5.398 6.757 6.192 8.058 8.418 12.330 14.500 32.325 25.599 1197.066 52.272 INF

T/11 0.931 0.970 0.979 1.022 1.074 1.127 1.169 1.233 1.263 1.340 1.357 1.447 1.450 1.554 1.543 1.662 1.727 1.881 1.909 2.101 2.089 2.324 2.356 2.664 2.793 3.242 3.219 3.838 3.635 4.450 4.041 5.082 4.437 5.732 5.204 7.094 5.935 8.543 7.948 13.515 13.149 42.087 21.651 INF 38.053 INF

T/16 0.923 0.979 0.970 1.032 1.063 1.140 1.155 1.249 1.247 1.358 1.338 1.469 1.428 1.580 1.518 1.693 1.695 1.920 1.870 2.151 2.043 2.386 2.297 2.746 2.708 3.366 3.106 4.014 3.491 4.692 3.863 5.401 4.223 6.143 4.909 7.738 5.554 9.501 7.273 16.101 11.386 84.957 17.233 INF 26.204 INF

T/22 0.914 0.990 0.959 1.045 1.050 1.156 1.140 1.268 1.228 1.382 1.316 1.497 1.403 1.613 1.489 1.730 1.659 1.969 1.826 2.214 1.990 2.465 2.229 2.852 2.614 3.529 2.981 4.250 3.333 5.020 3.669 5.842 3.992 6.723 4.598 8.689 5.157 10.983 6.603 20.923 9.812 INF 13.853 INF 19.095 INF

18

Cooke S4 U Feet 2' 6" 2' 9" 3' 0" 3' 3" 3' 6" 3' 9" 4' 0" 4' 3" 4' 6" 4' 9" 5' 0" 5' 6" 6' 0" 6' 6" 7' 0" 7' 6" 8' 0"

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N

N F 8' 6" N F 9' 0" N F 10' 0" N F 11' 0" N F 12' 0" N F 13' 0" N F 15' 0" N F 17' 0" N F 20' 0" N F 25' 0" N F 30' 0" N F 40' 0" N F 60' 0" N F 120' 0" N F INF N F

T/2 2' 6" 2' 6" 2' 9" 2' 9" 2' 11.9" 3' 0.1" 3' 2.9" 3' 3.1" 3' 5.9" 3' 6.1" 3' 8.9" 3' 9.1" 3' 11.9" 4' 0.1" 4' 2.9" 4' 3.1" 4' 5.8" 4' 6.2" 4' 8.8" 4' 9.2" 4' 11.8" 5' 0.2" 5' 5.8" 5' 6.2" 5' 11.7" 6' 0.3" 6' 5.6" 6' 6.4" 6' 11.6" 7' 0.4" 7' 5.5" 7' 6.5" 7' 11.5" 8' 0.6" 8' 5.4" 8' 6.6" 8' 11.3" 9' 0.7" 9' 11.1" 10' 0.9" 10' 10.9" 11' 1.1" 11' 10.7" 12' 1.3" 12' 10.5" 13' 1.6" 14' 10" 15' 2.1" 16' 9.4" 17' 2.7" 19' 8.3" 20' 3.8" 24' 6.2" 25' 6" 29' 3.7" 30' 8.8" 38' 9.2" 41' 3.8" 57' 2.9" 63' 0.5" 109' 4.6" 132' 11" 1227' 0.7" INF

T/2.8 2' 5.9" 2' 6.1" 2' 8.9" 2' 9.1" 2' 11.9" 3' 0.1" 3' 2.9" 3' 3.1" 3' 5.9" 3' 6.1" 3' 8.9" 3' 9.1" 3' 11.8" 4' 0.2" 4' 2.8" 4' 3.2" 4' 5.8" 4' 6.2" 4' 8.8" 4' 9.2" 4' 11.7" 5' 0.3" 5' 5.7" 5' 6.3" 5' 11.6" 6' 0.4" 6' 5.5" 6' 6.5" 6' 11.4" 7' 0.6" 7' 5.3" 7' 6.7" 7' 11.2" 8' 0.8" 8' 5.1" 8' 6.9" 8' 11" 9' 1" 9' 10.8" 10' 1.3" 10' 10.5" 11' 1.5" 11' 10.2" 12' 1.8" 12' 9.9" 13' 2.2" 14' 9.2" 15' 2.9" 16' 8.3" 17' 3.8" 19' 6.9" 20' 5.3" 24' 4" 25' 8.5" 29' 0.4" 31' 0.4" 38' 3.5" 41' 10.4" 56' 2.5" 64' 4.1" 105' 7.8" 138' 10.8" 876' 7.9" INF

135mm Apertures T/4 T/5.6 2' 5.9" 2' 5.9" 2' 6.1" 2' 6.1" 2' 8.9" 2' 8.9" 2' 9.1" 2' 9.1" 2' 11.9" 2' 11.8" 3' 0.1" 3' 0.2" 3' 2.9" 3' 2.8" 3' 3.1" 3' 3.2" 3' 5.8" 3' 5.8" 3' 6.2" 3' 6.2" 3' 8.8" 3' 8.7" 3' 9.2" 3' 9.3" 3' 11.8" 3' 11.7" 4' 0.2" 4' 0.3" 4' 2.7" 4' 2.6" 4' 3.3" 4' 3.4" 4' 5.7" 4' 5.6" 4' 6.3" 4' 6.4" 4' 8.6" 4' 8.5" 4' 9.4" 4' 9.5" 4' 11.6" 4' 11.5" 5' 0.4" 5' 0.6" 5' 5.5" 5' 5.3" 5' 6.5" 5' 6.7" 5' 11.4" 5' 11.2" 6' 0.6" 6' 0.8" 6' 5.3" 6' 5" 6' 6.7" 6' 7" 6' 11.2" 6' 10.9" 7' 0.8" 7' 1.2" 7' 5" 7' 4.7" 7' 7" 7' 7.4" 7' 10.9" 7' 10.5" 8' 1.1" 8' 1.6" 8' 4.8" 8' 4.3" 8' 7.3" 8' 7.8" 8' 10.6" 8' 10" 9' 1.4" 9' 2" 9' 10.3" 9' 9.6" 10' 1.8" 10' 2.5" 10' 9.9" 10' 9" 11' 2.2" 11' 3.1" 11' 9.4" 11' 8.5" 12' 2.7" 12' 3.7" 12' 9" 12' 7.8" 13' 3.1" 13' 4.4" 14' 8" 14' 6.4" 15' 4.2" 15' 6" 16' 6.8" 16' 4.8" 17' 5.5" 17' 7.8" 19' 4.8" 19' 2" 20' 7.7" 20' 11" 24' 0.7" 23' 8.4" 26' 0.3" 26' 5.5" 28' 7.7" 28' 1.6" 31' 5.9" 32' 1.7" 37' 7.3" 36' 8.7" 42' 8.7" 43' 11.1" 54' 8.8" 52' 10.5" 66' 4.9" 69' 4.5" 100' 6" 94' 4.5" 148' 11.6" 164' 10.9" 613' 10.4" 438' 8" INF INF

Feet T/8 2' 5.9" 2' 6.1" 2' 8.8" 2' 9.2" 2' 11.8" 3' 0.2" 3' 2.7" 3' 3.3" 3' 5.7" 3' 6.3" 3' 8.6" 3' 9.4" 3' 11.5" 4' 0.5" 4' 2.5" 4' 3.6" 4' 5.4" 4' 6.6" 4' 8.3" 4' 9.7" 4' 11.2" 5' 0.8" 5' 5" 5' 7" 5' 10.8" 6' 1.2" 6' 4.6" 6' 7.4" 6' 10.4" 7' 1.7" 7' 4.1" 7' 8" 7' 9.8" 8' 2.3" 8' 3.5" 8' 8.6" 8' 9.2" 9' 2.9" 9' 8.6" 10' 3.7" 10' 7.8" 11' 4.5" 11' 7" 12' 5.4" 12' 6.1" 13' 6.4" 14' 4.1" 15' 8.7" 16' 1.9" 17' 11.3" 18' 10" 21' 4" 23' 2.2" 27' 1.6" 27' 4.9" 33' 1.8" 35' 5.8" 45' 10.3" 50' 3.9" 74' 4.4" 86' 5.8" 196' 6" 307' 3.2" INF

T/11 2' 5.8" 2' 6.2" 2' 8.7" 2' 9.3" 2' 11.7" 3' 0.3" 3' 2.6" 3' 3.4" 3' 5.5" 3' 6.5" 3' 8.4" 3' 9.6" 3' 11.4" 4' 0.7" 4' 2.3" 4' 3.8" 4' 5.2" 4' 6.9" 4' 8" 4' 10" 4' 10.9" 5' 1.1" 5' 4.7" 5' 7.4" 5' 10.4" 6' 1.7" 6' 4.1" 6' 8" 6' 9.8" 7' 2.4" 7' 3.4" 7' 8.7" 7' 9.1" 8' 3.2" 8' 2.7" 8' 9.6" 8' 8.2" 9' 4.1" 9' 7.3" 10' 5.1" 10' 6.3" 11' 6.3" 11' 5.2" 12' 7.6" 12' 4" 13' 9" 14' 1.3" 16' 0.2" 15' 10.3" 18' 3.9" 18' 5.1" 21' 10.5" 22' 6.8" 28' 0.5" 26' 6.6" 34' 6.2" 34' 0.6" 48' 6.4" 47' 5.5" 81' 8.7" 78' 3.6" 258' 5.7" 223' 7.8" INF

T/16 2' 5.7" 2' 6.3" 2' 8.6" 2' 9.4" 2' 11.5" 3' 0.5" 3' 2.4" 3' 3.6" 3' 5.3" 3' 6.7" 3' 8.2" 3' 9.8" 3' 11.1" 4' 1" 4' 1.9" 4' 4.1" 4' 4.8" 4' 7.3" 4' 7.6" 4' 10.5" 4' 10.5" 5' 1.6" 5' 4.1" 5' 8" 5' 9.7" 6' 2.5" 6' 3.3" 6' 8.9" 6' 8.8" 7' 3.5" 7' 2.3" 7' 10" 7' 7.8" 8' 4.7" 8' 1.2" 8' 11.3" 8' 6.6" 9' 6" 9' 5.3" 10' 7.6" 10' 3.9" 11' 9.3" 11' 2.3" 12' 11.3" 12' 0.7" 14' 1.4" 13' 8.9" 16' 6.3" 15' 4.7" 19' 0" 17' 9.5" 22' 10.3" 21' 7.4" 29' 8.2" 25' 2.8" 37' 0.8" 31' 10.8" 53' 9.3" 43' 4.3" 97' 10.9" 67' 8" 546' 3" 153' 11.7" INF

T/22 2' 5.6" 2' 6.4" 2' 8.5" 2' 9.5" 2' 11.4" 3' 0.7" 3' 2.2" 3' 3.8" 3' 5.1" 3' 7" 3' 7.9" 3' 10.2" 3' 10.7" 4' 1.3" 4' 1.5" 4' 4.6" 4' 4.3" 4' 7.8" 4' 7.1" 4' 11" 4' 9.9" 5' 2.3" 5' 3.4" 5' 8.8" 5' 8.9" 6' 3.4" 6' 2.3" 6' 10.1" 6' 7.7" 7' 4.9" 7' 1" 7' 11.7" 7' 6.3" 8' 6.5" 7' 11.6" 9' 1.5" 8' 4.8" 9' 8.5" 9' 3" 10' 10.7" 10' 1.1" 12' 1.2" 10' 11.1" 13' 4" 11' 8.8" 14' 7.1" 13' 3.9" 17' 2.2" 14' 10.4" 19' 10.6" 17' 1.1" 24' 1.9" 20' 7" 31' 11.3" 23' 9.9" 40' 8.1" 29' 7.9" 61' 9.6" 39' 3.6" 128' 6.6" 58' 2.4" INF 112' 2" INF

19

Cooke S4 U Metres 0.80 N F 0.90 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.40 N F 1.50 N F 1.60 N F 1.80 N F 2.00 N F 2.20 N F 2.50 N F 3.00 N F 3.50 N F 4.00 N F 4.50 N F 5.00 N F 6.00 N F 7.00 N F 10.00 N F 20.00 N F 50.00 N F INF N F

T/2 0.799 0.801 0.899 0.901 0.998 1.002 1.098 1.102 1.197 1.203 1.297 1.304 1.396 1.404 1.495 1.505 1.594 1.606 1.793 1.807 1.991 2.009 2.189 2.211 2.485 2.515 2.978 3.022 3.470 3.530 3.961 4.040 4.450 4.551 4.938 5.064 5.910 6.093 6.876 7.128 9.747 10.267 18.998 21.115 44.133 57.677 374.007 INF

135mm T/2.8 0.799 0.801 0.898 0.902 0.997 1.003 1.097 1.103 1.196 1.204 1.295 1.305 1.394 1.406 1.493 1.507 1.592 1.608 1.790 1.810 1.987 2.013 2.184 2.216 2.479 2.521 2.970 3.031 3.458 3.543 3.945 4.057 4.430 4.572 4.913 5.090 5.874 6.131 6.828 7.181 9.649 10.378 18.625 21.597 42.155 61.454 267.206 INF

T/4 0.798 0.802 0.897 0.903 0.996 1.004 1.095 1.105 1.194 1.206 1.293 1.307 1.392 1.408 1.490 1.510 1.589 1.611 1.786 1.815 1.982 2.019 2.178 2.223 2.471 2.530 2.957 3.044 3.441 3.561 3.922 4.081 4.401 4.604 4.877 5.130 5.822 6.190 6.757 7.261 9.506 10.549 18.093 22.363 39.502 68.152 187.106 INF

Apertures T/5.6 0.797 0.803 0.896 0.904 0.995 1.005 1.093 1.107 1.192 1.208 1.290 1.310 1.388 1.412 1.487 1.514 1.584 1.616 1.780 1.821 1.975 2.026 2.169 2.232 2.459 2.542 2.940 3.062 3.418 3.587 3.892 4.115 4.362 4.647 4.829 5.184 5.754 6.269 6.665 7.372 9.322 10.787 17.429 23.473 36.446 79.750 133.706 INF

Metres T/8 0.796 0.804 0.894 0.906 0.993 1.008 1.091 1.110 1.189 1.212 1.286 1.314 1.384 1.417 1.481 1.520 1.578 1.623 1.771 1.830 1.964 2.037 2.156 2.246 2.442 2.561 2.915 3.090 3.384 3.625 3.847 4.166 4.306 4.713 4.760 5.267 5.655 6.392 6.531 7.544 9.059 11.164 16.521 25.366 32.660 107.128 93.656 INF

T/11 0.794 0.806 0.892 0.908 0.990 1.010 1.087 1.113 1.184 1.216 1.281 1.320 1.378 1.423 1.474 1.527 1.570 1.632 1.761 1.841 1.951 2.052 2.140 2.264 2.421 2.585 2.885 3.125 3.342 3.675 3.793 4.232 4.238 4.799 4.676 5.374 5.535 6.553 6.372 7.771 8.752 11.675 15.512 28.212 28.911 187.863 68.169 INF

T/16 0.792 0.809 0.889 0.912 0.985 1.015 1.082 1.119 1.177 1.224 1.273 1.329 1.368 1.434 1.462 1.540 1.557 1.646 1.744 1.860 1.930 2.076 2.114 2.294 2.387 2.625 2.836 3.186 3.275 3.760 3.706 4.348 4.129 4.949 4.543 5.565 5.348 6.841 6.123 8.182 8.284 12.642 14.082 34.722 24.277 INF 46.931 INF

T/22 0.789 0.812 0.885 0.916 0.980 1.021 1.075 1.127 1.169 1.233 1.263 1.340 1.356 1.447 1.449 1.556 1.541 1.665 1.724 1.884 1.905 2.107 2.083 2.332 2.348 2.676 2.779 3.262 3.199 3.869 3.608 4.495 4.006 5.143 4.393 5.812 5.140 7.224 5.850 8.739 7.786 14.042 12.683 48.072 20.371 INF 34.188 INF

20

COOKE 18/100 ZOOM LENSES & COOKE CINETAL Mk-III 25-250mm

Depth of Field Tables These depth of field tables refer specifically to the optical design used for this lens, since allowance has been made for the position of the front nodal point relative to the film plane at each focal length. The tables are based on a disc of confusion of 0.001 inches (0.0254mm) diameter. In cases where it may be desirable to allow for a smaller or larger disc of confusion, the T-numbers read from the tables may be increased or reduced in the required ratio. Thus the depth values listed at T/8.0 will be the depth obtained at a criterion for definition corresponding to a disc of confusion of 0.002 inches (0.0508mm) if the lens is set at T/4.0. Key to tables: U = Object distance sharply measured from the film plane. N = Nearest distance in focus. F = Farthest distance in focus.

21

Cooke Zoom 18-100mm U Feet 2' 4" 2' 6" 2' 9" 2' 10" 3' 0" 3' 3" 3' 6" 3' 9" 4' 0" 4' 6" 5' 0" 6' 0" 7' 0" 8' 0" 9' 0" 10' 0" 12' 0" 15' 0" 20' 0" 30' 0" 60' 0" INF

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F

T/3 2' 2.5" 2' 5.8" 2' 4.2" 2' 8.3" 2' 6.6" 3' 0.1" 2' 7.4" 3' 1.4" 2' 9" 3' 4" 2' 11.3" 3' 8.1" 3' 1.5" 4' 0.4" 3' 3.6" 4' 4.8" 3' 5.8" 4' 9.4" 3' 9.8" 5' 7.2" 4' 1.7" 6' 5.9" 4' 8.8" 8' 6.3" 5' 3.3" 10' 12" 5' 9.2" 14' 0.7" 6' 2.6" 17' 11.4" 6' 7.5" 23' 0.9" 7' 4.4" 40' 4.4" 8' 3.4" 162' 0" 9' 5.4" INF 11' 0.1" INF 13' 2.2" INF 16' 5" INF

T/4 2' 2.1" 2' 6.5" 2' 3.6" 2' 9.1" 2' 5.9" 3' 1.3" 2' 6.7" 3' 2.7" 2' 8.1" 3' 5.7" 2' 10.2" 3' 10.3" 3' 0.3" 4' 3.1" 3' 2.2" 4' 8.3" 3' 4.1" 5' 1.7" 3' 7.7" 6' 1.6" 3' 11.1" 7' 3.2" 4' 5.3" 10' 0.4" 4' 10.7" 13' 9.9" 5' 3.6" 19' 3.6" 5' 8" 27' 11" 5' 12" 43' 5.9" 6' 6.9" 269' 2.1" 7' 3.2" INF 8' 1.5" INF 9' 2.5" INF 10' 7.4" INF 12' 6.5" INF

F=18mm Apertures T/5.6 T/8 T/11 2' 1.4" 2' 0.6" 1' 11.6" 2' 7.7" 2' 9.8" 3' 1.1" 2' 2.9" 2' 1.8" 2' 0.7" 2' 10.7" 3' 1.5" 3' 6.1" 2' 4.9" 2' 3.6" 2' 2.2" 3' 3.5" 3' 7.6" 4' 2.8" 2' 5.6" 2' 4.2" 2' 2.7" 3' 5.2" 3' 9.9" 4' 6.2" 2' 6.9" 2' 5.3" 2' 3.6" 3' 8.7" 4' 2.6" 5' 1.7" 2' 8.7" 2' 6.8" 2' 4.9" 4' 2.3" 4' 10.6" 6' 3.6" 2' 10.5" 2' 8.3" 2' 6.1" 4' 8.5" 5' 7.9" 7' 9.8" 3' 0.2" 2' 9.7" 2' 7.2" 5' 3.2" 6' 6.7" 9' 10.8" 3' 1.8" 2' 11" 2' 8.2" 5' 10.6" 7' 7.6" 12' 11.4" 3' 4.9" 3' 1.4" 2' 10.1" 7' 3.6" 10' 6.3" 26' 10.7" 3' 7.7" 3' 3.6" 2' 11.7" 9' 0.8" 15' 1.8" 208' 6" 4' 0.7" 3' 7.3" 3' 2.5" 14' 3.4" 45' 1.8" INF 4' 4.9" 3' 10.5" 3' 4.7" 24' 3.8" INF INF 4' 8.7" 4' 1.1" 3' 6.6" 51' 8.1" INF INF 4' 12" 4' 3.4" 3' 8.1" 422' 11.7" INF INF 5' 2.9" 4' 5.3" 3' 9.4" INF INF INF 5' 7.8" 4' 8.6" 3' 11.6" INF INF INF 6' 1.5" 5' 0.2" 4' 1.9" INF INF INF 6' 8.3" 5' 4.3" 4' 4.4" INF INF INF 7' 4.4" 5' 9" 4' 7.2" INF INF INF 8' 2.3" 6' 2.4" 4' 10.3" INF INF INF 9' 2.6" 6' 8.7" 5' 1.7" INF INF INF

T/16 1' 10.3" 3' 9.5" 1' 11.1" 4' 6.7" 2' 0.3" 6' 2.1" 2' 0.7" 6' 10.9" 2' 1.4" 8' 10.3" 2' 2.3" 14' 1.7" 2' 3.2" 29' 6.2" 2' 4" 657' 10.2" 2' 4.8" INF 2' 6.1" INF 2' 7.2" INF 2' 9" INF 2' 10.4" INF 2' 11.6" INF 3' 0.5" INF 3' 1.3" INF 3' 2.5" INF 3' 3.8" INF 3' 5.2" INF 3' 6.6" INF 3' 8.2" INF 3' 9.9" INF

Feet T/22 1' 9" 5' 7.3" 1' 9.7" 8' 0.3" 1' 10.6" 18' 5.9" 1' 10.9" 30' 5.5" 1' 11.4" INF 2' 0.1" INF 2' 0.8" INF 2' 1.3" INF 2' 1.9" INF 2' 2.8" INF 2' 3.5" INF 2' 4.7" INF 2' 5.7" INF 2' 6.4" INF 2' 7" INF 2' 7.4" INF 2' 8.2" INF 2' 8.9" INF 2' 9.7" INF 2' 10.6" INF 2' 11.4" INF 3' 0.4" INF

22

Cooke Zoom 18-100mm U Feet 2' 4" 2' 6" 2' 9" 2' 10" 3' 0" 3' 3" 3' 6" 3' 9" 4' 0" 4' 6" 5' 0" 6' 0" 7' 0" 8' 0" 9' 0" 10' 0" 12' 0" 15' 0" 20' 0" 30' 0" 60' 0" INF

T/3 N 2' 3.2" F 2' 4.9" N 2' 5" F 2' 7.1" N 2' 7.6" F 2' 10.5" N 2' 8.5" F 2' 11.7" N 2' 10.3" F 3' 2" N 3' 0.9" F 3' 5.5" N 3' 3.4" F 3' 9.1" N 3' 5.9" F 4' 0.7" N 3' 8.4" F 4' 4.4" N 4' 1.3" F 5' 0.1" N 4' 5.9" F 5' 8" N 5' 2.9" F 7' 0.9" N 5' 11.4" F 8' 7.1" N 6' 7.5" F 10' 3" N 7' 3.1" F 12' 0.7" N 7' 10.3" F 14' 0.5" N 8' 11.7" F 18' 7.7" N 10' 5.5" F 27' 8.9" N 12' 6.4" F 54' 2.7" N 15' 7.5" F 1224' 5.7" N 20' 8.8" F INF N 30' 9.5" F INF

T/4 2' 2.9" 2' 5.3" 2' 4.7" 2' 7.6" 2' 7.2" 2' 11.1" 2' 8.1" 3' 0.3" 2' 9.8" 3' 2.7" 3' 0.2" 3' 6.4" 3' 2.7" 3' 10.3" 3' 5" 4' 2.2" 3' 7.4" 4' 6.2" 3' 11.9" 5' 2.5" 4' 4.2" 5' 11.3" 5' 0.5" 7' 6.4" 5' 8.2" 9' 3.9" 6' 3.3" 11' 4.2" 6' 10" 13' 7.9" 7' 4.2" 16' 3.8" 8' 3.6" 23' 0.7" 9' 6.4" 39' 3.6" 11' 2.3" 133' 3.3" 13' 6.5" INF 17' 1.6" INF 23' 3.8" INF

F=25mm Apertures T/5.6 T/8 T/11 2' 2.5" 2' 1.9" 2' 1.3" 2' 5.8" 2' 6.7" 2' 7.9" 2' 4.2" 2' 3.5" 2' 2.7" 2' 8.3" 2' 9.4" 2' 11" 2' 6.6" 2' 5.7" 2' 4.7" 3' 0.1" 3' 1.6" 3' 3.9" 2' 7.4" 2' 6.5" 2' 5.4" 3' 1.4" 3' 3.1" 3' 5.6" 2' 9" 2' 7.9" 2' 6.7" 3' 4" 3' 6.1" 3' 9.2" 2' 11.3" 2' 10" 2' 8.5" 3' 8.1" 3' 10.8" 4' 3" 3' 1.5" 2' 12" 2' 10.3" 4' 0.3" 4' 3.8" 4' 9.4" 3' 3.7" 3' 1.9" 2' 11.9" 4' 4.7" 4' 9.2" 5' 4.3" 3' 5.8" 3' 3.8" 3' 1.5" 4' 9.3" 5' 2.8" 5' 11.9" 3' 9.9" 3' 7.3" 3' 4.5" 5' 6.9" 6' 3.2" 7' 5.7" 4' 1.8" 3' 10.6" 3' 7.3" 6' 5.4" 7' 5.4" 9' 4" 4' 9" 4' 4.6" 4' 0.2" 8' 5.3" 10' 4.7" 14' 11.1" 5' 3.6" 4' 9.9" 4' 4.4" 10' 10.1" 14' 6.2" 26' 2.5" 5' 9.6" 5' 2.7" 4' 8.1" 13' 9.4" 20' 8.3" 60' 10" 6' 3.1" 5' 6.9" 4' 11.3" 17' 5.7" 30' 11.3" INF 6' 8.2" 5' 10.8" 5' 2.1" 22' 3" 51' 3.9" INF 7' 5.2" 6' 5.4" 5' 6.9" 37' 8.7" 5128' 7" INF 8' 4.5" 7' 1.4" 6' 0.5" 124' 4.8" INF INF 9' 7" 7' 11.3" 6' 7.1" INF INF INF 11' 2.5" 8' 11.7" 7' 3" INF INF INF 13' 5.8" 10' 3.7" 8' 0.6" INF INF INF 16' 10.9" 12' 1.3" 9' 0.6" INF INF INF

T/16 2' 0.3" 2' 10.4" 2' 1.6" 3' 2.3" 2' 3.3" 3' 8.7" 2' 3.8" 3' 11.1" 2' 4.9" 4' 4.1" 2' 6.4" 5' 0.7" 2' 7.9" 5' 10.7" 2' 9.2" 6' 10.7" 2' 10.5" 8' 1.1" 3' 0.8" 11' 5.1" 3' 2.9" 17' 1.3" 3' 6.6" 69' 2.9" 3' 9.6" INF 4' 0.1" INF 4' 2.3" INF 4' 4.1" INF 4' 7.2" INF 4' 10.7" INF 5' 2.6" INF 5' 7" INF 6' 0.1" INF 6' 6" INF

Feet T/22 1' 11.3" 3' 2.2" 2' 0.4" 3' 7.5" 2' 1.8" 4' 5.1" 2' 2.3" 4' 8.8" 2' 3.2" 5' 5.2" 2' 4.4" 6' 8.9" 2' 5.6" 8' 6.3" 2' 6.7" 11' 1.2" 2' 7.7" 15' 1.3" 2' 9.5" 38' 6.5" 2' 11" INF 3' 1.7" INF 3' 3.8" INF 3' 5.6" INF 3' 7.1" INF 3' 8.3" INF 3' 10.3" INF 4' 0.5" INF 4' 2.9" INF 4' 5.5" INF 4' 8.4" INF 4' 11.7" INF

23

Cooke Zoom 18-100mm U Feet 2' 4" 2' 6" 2' 9" 2' 10" 3' 0" 3' 3" 3' 6" 3' 9" 4' 0" 4' 6" 5' 0" 6' 0" 7' 0" 8' 0" 9' 0" 10' 0" 12' 0" 15' 0" 20' 0" 30' 0" 60' 0" INF

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F

T/3 2' 3.5" 2' 4.6" 2' 5.3" 2' 6.7" 2' 8.1" 2' 9.9" 2' 9.1" 2' 11" 2' 10.9" 3' 1.2" 3' 1.6" 3' 4.5" 3' 4.3" 3' 7.9" 3' 7" 3' 11.2" 3' 9.7" 4' 2.7" 4' 2.9" 4' 9.6" 4' 8.1" 5' 4.7" 5' 6.1" 6' 7.4" 6' 3.7" 7' 10.7" 7' 1" 9' 2.8" 7' 10" 10' 7.7" 8' 6.6" 12' 1.4" 9' 11.1" 15' 3.7" 11' 9.8" 20' 9.4" 14' 7.3" 32' 4.4" 19' 1.4" 73' 1.4" 27' 7.6" INF 49' 10.3" INF

T/4 2' 3.3" 2' 4.8" 2' 5.1" 2' 7" 2' 7.9" 2' 10.3" 2' 8.8" 2' 11.4" 2' 10.5" 3' 1.6" 3' 1.2" 3' 5.1" 3' 3.8" 3' 8.5" 3' 6.4" 4' 0" 3' 9" 4' 3.6" 4' 2" 4' 10.9" 4' 6.9" 5' 6.4" 5' 4.3" 6' 10.2" 6' 1.3" 8' 3" 6' 9.9" 9' 9" 7' 6.1" 11' 4.2" 8' 2" 13' 0.8" 9' 4.7" 16' 10.8" 11' 0.7" 23' 11.2" 13' 5.1" 41' 0.2" 17' 1.1" 143' 5.5" 23' 6.1" INF 37' 7.3" INF

F=32mm Apertures T/5.6 T/8 2' 3" 2' 2.6" 2' 5.1" 2' 5.6" 2' 4.8" 2' 4.3" 2' 7.4" 2' 8" 2' 7.4" 2' 6.8" 2' 10.8" 2' 11.7" 2' 8.3" 2' 7.6" 3' 0" 3' 1" 2' 10" 2' 9.2" 3' 2.4" 3' 3.5" 3' 0.5" 2' 11.6" 3' 6" 3' 7.5" 3' 3" 3' 1.9" 3' 9.7" 3' 11.5" 3' 5.5" 3' 4.2" 4' 1.4" 4' 3.7" 3' 7.9" 3' 6.4" 4' 5.3" 4' 8" 4' 0.6" 3' 10.6" 5' 1.2" 5' 5.1" 4' 5.1" 4' 2.7" 5' 9.5" 6' 2.8" 5' 1.8" 4' 10.4" 7' 3.3" 8' 0.5" 5' 9.9" 5' 5.4" 8' 10.9" 10' 1.8" 6' 5.5" 5' 11.8" 10' 8.6" 12' 7.6" 7' 0.7" 6' 5.8" 12' 8.6" 15' 7.2" 7' 7.5" 6' 11.4" 14' 11.5" 19' 2.7" 8' 8" 7' 9.3" 20' 4" 29' 6.3" 10' 0.4" 8' 10" 31' 9" 63' 7.6" 11' 10.9" 10' 2.6" 72' 6" INF 14' 7.8" 12' 1.3" INF INF 19' 0.3" 14' 10.4" INF INF 27' 1.4" 19' 2.9" INF INF

T/11 2' 2.2" 2' 6.3" 2' 3.8" 2' 8.9" 2' 6.1" 3' 0.9" 2' 6.9" 3' 2.3" 2' 8.4" 3' 5.1" 2' 10.5" 3' 9.5" 3' 0.7" 4' 2.1" 3' 2.7" 4' 6.9" 3' 4.7" 4' 12" 3' 8.5" 5' 10.9" 4' 0.1" 6' 11" 4' 6.7" 9' 3.6" 5' 0.6" 12' 4.3" 5' 6" 16' 5" 5' 10.8" 22' 0.7" 6' 3.2" 30' 5.2" 6' 11" 70' 9.7" 7' 8.5" INF 8' 8.5" INF 10' 0.1" INF 11' 9" INF 14' 2.8" INF

T/16 2' 1.5" 2' 7.6" 2' 2.9" 2' 10.5" 2' 5" 3' 3.2" 2' 5.7" 3' 4.8" 2' 7" 3' 8.2" 2' 8.9" 4' 1.5" 2' 10.8" 4' 7.3" 3' 0.5" 5' 1.6" 3' 2.2" 5' 8.4" 3' 5.4" 6' 11.8" 3' 8.4" 8' 6.3" 4' 1.7" 12' 9.5" 4' 6.3" 19' 11.3" 4' 10.3" 34' 5.1" 5' 1.9" 79' 4.4" 5' 5.1" INF 5' 10.5" INF 6' 4.9" INF 7' 0.6" INF 7' 10" INF 8' 9.7" INF 10' 0.7" INF

Feet T/22 2' 0.7" 2' 9.3" 2' 2" 3' 0.8" 2' 3.9" 3' 6.5" 2' 4.5" 3' 8.5" 2' 5.6" 4' 0.8" 2' 7.3" 4' 7.8" 2' 8.9" 5' 3.8" 2' 10.3" 6' 0.8" 2' 11.8" 6' 11.2" 3' 2.4" 9' 1.1" 3' 4.8" 12' 1.7" 3' 9" 24' 6.6" 4' 0.5" 92' 6.5" 4' 3.5" INF 4' 6.1" INF 4' 8.4" INF 5' 0.2" INF 5' 4.6" INF 5' 9.6" INF 6' 3.5" INF 6' 10.3" INF 7' 6.6" INF

24

Cooke Zoom 18-100mm U Feet 2' 4" 2' 6" 2' 9" 2' 10" 3' 0" 3' 3" 3' 6" 3' 9" 4' 0" 4' 6" 5' 0" 6' 0" 7' 0" 8' 0" 9' 0" 10' 0" 12' 0" 15' 0" 20' 0" 30' 0" 60' 0" INF

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F

T/3 2' 3.6" 2' 4.4" 2' 5.6" 2' 6.5" 2' 8.4" 2' 9.6" 2' 9.4" 2' 10.7" 2' 11.3" 3' 0.8" 3' 2.1" 3' 4" 3' 4.9" 3' 7.2" 3' 7.7" 3' 10.4" 3' 10.4" 4' 1.7" 4' 3.9" 4' 8.3" 4' 9.4" 5' 3" 5' 8" 6' 4.6" 6' 6.4" 7' 6.6" 7' 4.5" 8' 9" 8' 2.4" 9' 11.9" 9' 0.1" 11' 3.2" 10' 6.8" 13' 11.1" 12' 9.3" 18' 3" 16' 1.7" 26' 5.4" 21' 11.2" 48' 0.8" 34' 2.2" 263' 2.4" 77' 4.7" INF

T/4 2' 3.5" 2' 4.5" 2' 5.4" 2' 6.6" 2' 8.2" 2' 9.8" 2' 9.2" 2' 10.9" 2' 11" 3' 1.1" 3' 1.8" 3' 4.3" 3' 4.5" 3' 7.6" 3' 7.3" 3' 10.9" 3' 10" 4' 2.3" 4' 3.3" 4' 9.1" 4' 8.5" 5' 4" 5' 6.8" 6' 6.3" 6' 4.7" 7' 9.1" 7' 2.3" 9' 0.5" 7' 11.7" 10' 4.5" 8' 8.7" 11' 9.2" 10' 2" 14' 8.7" 12' 2.2" 19' 8.3" 15' 2.2" 29' 8.3" 20' 1.8" 60' 4.3" 29' 11.4" INF 58' 3" INF

F=40mm T/5.6 2' 3.3" 2' 4.7" 2' 5.2" 2' 6.9" 2' 7.9" 2' 10.2" 2' 8.8" 2' 11.3" 2' 10.6" 3' 1.5" 3' 1.3" 3' 4.9" 3' 4" 3' 8.3" 3' 6.6" 3' 11.8" 3' 9.2" 4' 3.3" 4' 2.3" 4' 10.4" 4' 7.3" 5' 5.8" 5' 4.9" 6' 9.1" 6' 2.2" 8' 1.4" 6' 11.1" 9' 6.5" 7' 7.6" 11' 0.8" 8' 3.7" 12' 8.1" 9' 7.1" 16' 2.8" 11' 4.1" 22' 6.8" 13' 10.5" 37' 0.1" 17' 10.2" 102' 10.1" 25' 0.4" INF 41' 10.2" INF

Apertures T/8 T/11 2' 3.1" 2' 2.7" 2' 5.1" 2' 5.5" 2' 4.9" 2' 4.5" 2' 7.3" 2' 7.8" 2' 7.5" 2' 7" 2' 10.7" 2' 11.4" 2' 8.4" 2' 7.8" 2' 11.9" 3' 0.7" 2' 10.1" 2' 9.5" 3' 2.2" 3' 3.2" 3' 0.7" 2' 11.9" 3' 5.8" 3' 7" 3' 3.2" 3' 2.3" 3' 9.4" 3' 10.9" 3' 5.7" 3' 4.6" 4' 1.1" 4' 2.9" 3' 8.1" 3' 6.9" 4' 4.9" 4' 7" 4' 0.9" 3' 11.3" 5' 0.6" 5' 3.7" 4' 5.5" 4' 3.5" 5' 8.7" 6' 0.8" 5' 2.4" 4' 11.5" 7' 1.9" 7' 8.9" 5' 10.7" 5' 6.9" 8' 8.7" 9' 7.8" 6' 6.6" 6' 1.8" 10' 5.2" 11' 10" 7' 2.1" 6' 8.2" 12' 3.7" 14' 4.4" 7' 9.2" 7' 2.2" 14' 4.5" 17' 4" 8' 10.2" 8' 1" 19' 2.7" 25' 1.4" 10' 3.6" 9' 3" 29' 0.2" 45' 8.1" 12' 3.6" 10' 9.6" 59' 2.6" 252' 1.9" 15' 3.3" 12' 11.8" INF INF 20' 1.7" 16' 3" INF INF 29' 6.6" 21' 8.7" INF INF

T/16 2' 2.2" 2' 6.2" 2' 3.8" 2' 8.8" 2' 6.2" 3' 0.7" 2' 7" 3' 2.1" 2' 8.5" 3' 4.9" 2' 10.7" 3' 9.2" 3' 0.8" 4' 1.6" 3' 2.9" 4' 6.3" 3' 5" 4' 11.2" 3' 8.9" 5' 9.7" 4' 0.6" 6' 9.2" 4' 7.4" 8' 12" 5' 1.5" 11' 9.5" 5' 7.1" 15' 4.4" 6' 0.2" 20' 1.5" 6' 4.9" 26' 9.2" 7' 1.1" 53' 0.2" 7' 11.3" 3000' 9" 9' 0.2" INF 10' 5.2" INF 12' 4.5" INF 15' 2.4" INF

Feet T/22 2' 1.6" 2' 7.2" 2' 3.1" 2' 10" 2' 5.3" 3' 2.5" 2' 6" 3' 4" 2' 7.4" 3' 7.2" 2' 9.4" 4' 0.2" 2' 11.3" 4' 5.5" 3' 1.2" 4' 11.2" 3' 3" 5' 5.3" 3' 6.4" 6' 6.9" 3' 9.5" 7' 10.6" 4' 3.2" 11' 3.3" 4' 8.3" 16' 3.6" 5' 0.7" 24' 6.1" 5' 4.7" 40' 4.1" 5' 8.3" 83' 7.3" 6' 2.5" INF 6' 9.9" INF 7' 6.9" INF 8' 6.1" INF 9' 8.4" INF 11' 3.4" INF

25

Cooke Zoom 18-100mm U Feet 2' 4" 2' 6" 2' 9" 2' 10" 3' 0" 3' 3" 3' 6" 3' 9" 4' 0" 4' 6" 5' 0" 6' 0" 7' 0" 8' 0" 9' 0" 10' 0" 12' 0" 15' 0" 20' 0" 30' 0" 60' 0" INF

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F

T/3 2' 3.8" 2' 4.3" 2' 5.7" 2' 6.3" 2' 8.6" 2' 9.4" 2' 9.6" 2' 10.4" 2' 11.5" 3' 0.5" 3' 2.4" 3' 3.6" 3' 5.3" 3' 6.8" 3' 8.1" 3' 9.9" 3' 11" 4' 1.1" 4' 4.6" 4' 7.5" 4' 10.2" 5' 1.9" 5' 9.3" 6' 2.9" 6' 8.3" 7' 4.1" 7' 7" 8' 5.6" 8' 5.6" 9' 7.4" 9' 4" 10' 9.3" 11' 0.4" 13' 2.1" 13' 5.8" 16' 11.2" 17' 4" 23' 8.4" 24' 3" 39' 5.8" 40' 4.5" 118' 3.4" 120' 5" INF

T/4 2' 3.7" 2' 4.3" 2' 5.6" 2' 6.4" 2' 8.5" 2' 9.5" 2' 9.4" 2' 10.6" 2' 11.3" 3' 0.7" 3' 2.2" 3' 3.9" 3' 5" 3' 7" 3' 7.8" 3' 10.2" 3' 10.6" 4' 1.5" 4' 4.2" 4' 8" 4' 9.7" 5' 2.5" 5' 8.5" 6' 3.9" 6' 7.1" 7' 5.6" 7' 5.5" 8' 7.7" 8' 3.7" 9' 10.1" 9' 1.6" 11' 0.8" 10' 8.9" 13' 7.4" 13' 0.5" 17' 8.4" 16' 7.2" 25' 3.3" 22' 9.7" 44' 2.2" 36' 5.2" 175' 8.3" 90' 6.2" INF

F=50mm Apertures T/5.6 T/8 2' 3.5" 2' 3.4" 2' 4.5" 2' 4.7" 2' 5.4" 2' 5.2" 2' 6.6" 2' 6.8" 2' 8.3" 2' 8" 2' 9.8" 2' 10.1" 2' 9.2" 2' 8.9" 2' 10.8" 2' 11.2" 2' 11.1" 2' 10.7" 3' 1" 3' 1.4" 3' 1.9" 3' 1.4" 3' 4.2" 3' 4.8" 3' 4.6" 3' 4.1" 3' 7.5" 3' 8.2" 3' 7.4" 3' 6.7" 3' 10.8" 3' 11.6" 3' 10.1" 3' 9.4" 4' 2.1" 4' 3.1" 4' 3.5" 4' 2.5" 4' 8.8" 4' 10.1" 4' 8.8" 4' 7.6" 5' 3.6" 5' 5.4" 5' 7.2" 5' 5.4" 6' 5.6" 6' 8.4" 6' 5.3" 6' 2.8" 7' 8.1" 8' 0.2" 7' 3.1" 6' 11.9" 8' 11.1" 9' 4.9" 8' 0.7" 7' 8.6" 10' 2.7" 10' 10.4" 8' 10" 8' 5" 11' 6.8" 12' 5" 10' 3.8" 9' 8.9" 14' 4.9" 15' 9.4" 12' 4.9" 11' 6.8" 19' 1.1" 21' 8" 15' 6.6" 14' 2.7" 28' 3.5" 34' 6.5" 20' 10" 18' 5.5" 54' 7.9" 85' 2.6" 31' 6.5" 26' 3.5" 802' 10.8" INF 64' 10.7" 45' 8" INF INF

T/11 2' 3.1" 2' 5" 2' 4.9" 2' 7.2" 2' 7.6" 2' 10.6" 2' 8.5" 2' 11.7" 2' 10.3" 3' 2" 3' 0.9" 3' 5.5" 3' 3.4" 3' 9" 3' 6" 4' 0.7" 3' 8.5" 4' 4.3" 4' 1.4" 4' 11.9" 4' 6.1" 5' 7.7" 5' 3.3" 7' 0.2" 5' 11.9" 8' 5.9" 6' 8.2" 10' 1" 7' 4" 11' 9.7" 7' 11.5" 13' 8.2" 9' 1.4" 17' 11.5" 10' 8" 26' 1.5" 12' 10.3" 47' 11.3" 16' 2.2" 291' 5.4" 21' 9.7" INF 33' 5.3" INF

T/16 2' 2.8" 2' 5.4" 2' 4.5" 2' 7.8" 2' 7" 2' 11.4" 2' 7.9" 3' 0.6" 2' 9.6" 3' 3" 3' 0" 3' 6.8" 3' 2.4" 3' 10.6" 3' 4.8" 4' 2.6" 3' 7.1" 4' 6.7" 3' 11.6" 5' 3.1" 4' 3.9" 6' 0" 5' 0.1" 7' 7.4" 5' 7.7" 9' 5.2" 6' 2.8" 11' 5.9" 6' 9.4" 13' 10.1" 7' 3.6" 16' 6.6" 8' 2.9" 23' 5.3" 9' 5.6" 40' 1.9" 11' 1.4" 140' 4.3" 13' 5.5" INF 17' 0.6" INF 23' 3" INF

Feet T/22 2' 2.3" 2' 6" 2' 4" 2' 8.5" 2' 6.4" 3' 0.4" 2' 7.2" 3' 1.7" 2' 8.7" 3' 4.3" 2' 11" 3' 8.5" 3' 1.3" 4' 0.7" 3' 3.4" 4' 5.2" 3' 5.5" 4' 9.8" 3' 9.6" 5' 7.6" 4' 1.5" 6' 6.1" 4' 8.7" 8' 6.2" 5' 3.3" 10' 11.1" 5' 9.3" 13' 10.5" 6' 2.8" 17' 6.7" 6' 7.9" 22' 3.6" 7' 5" 37' 6.3" 8' 4.4" 118' 4.6" 9' 7.1" INF 11' 2.9" INF 13' 6.9" INF 17' 1.6" INF

26

Cooke Zoom 18-100mm U Feet 2' 4" 2' 6" 2' 9" 2' 10" 3' 0" 3' 3" 3' 6" 3' 9" 4' 0" 4' 6" 5' 0" 6' 0" 7' 0" 8' 0" 9' 0" 10' 0" 12' 0" 15' 0" 20' 0" 30' 0" 60' 0" INF

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F

T/3 2' 3.8" 2' 4.2" 2' 5.8" 2' 6.2" 2' 8.7" 2' 9.3" 2' 9.7" 2' 10.3" 2' 11.6" 3' 0.4" 3' 2.6" 3' 3.5" 3' 5.5" 3' 6.5" 3' 8.4" 3' 9.7" 3' 11.3" 4' 0.8" 4' 5" 4' 7" 4' 10.7" 5' 1.3" 5' 10.1" 6' 2" 6' 9.3" 7' 2.9" 7' 8.4" 8' 3.9" 8' 7.4" 9' 5" 9' 6.3" 10' 6.4" 11' 3.7" 12' 9.5" 13' 10.9" 16' 3.5" 18' 0.7" 22' 5.2" 25' 8.9" 36' 0.1" 44' 9.8" 91' 2" 173' 0.2" INF

T/4 2' 3.8" 2' 4.2" 2' 5.7" 2' 6.3" 2' 8.6" 2' 9.4" 2' 9.6" 2' 10.4" 2' 11.5" 3' 0.5" 3' 2.4" 3' 3.6" 3' 5.3" 3' 6.7" 3' 8.2" 3' 9.9" 3' 11" 4' 1" 4' 4.7" 4' 7.4" 4' 10.3" 5' 1.8" 5' 9.5" 6' 2.7" 6' 8.5" 7' 3.9" 7' 7.3" 8' 5.2" 8' 6" 9' 6.8" 9' 4.5" 10' 8.7" 11' 1.1" 13' 1" 13' 6.9" 16' 9.4" 17' 5.9" 23' 4.7" 24' 7" 38' 7.2" 41' 4.2" 110' 4.8" 129' 11.6" INF

F=60mm Apertures T/5.6 T/8 T/11 2' 3.7" 2' 3.5" 2' 3.4" 2' 4.3" 2' 4.5" 2' 4.7" 2' 5.6" 2' 5.4" 2' 5.2" 2' 6.4" 2' 6.6" 2' 6.8" 2' 8.5" 2' 8.3" 2' 8" 2' 9.5" 2' 9.8" 2' 10.1" 2' 9.4" 2' 9.2" 2' 8.9" 2' 10.6" 2' 10.9" 2' 11.2" 2' 11.3" 2' 11.1" 2' 10.7" 3' 0.7" 3' 1" 3' 1.4" 3' 2.2" 3' 1.9" 3' 1.4" 3' 3.9" 3' 4.2" 3' 4.7" 3' 5" 3' 4.6" 3' 4.1" 3' 7" 3' 7.5" 3' 8.1" 3' 7.8" 3' 7.4" 3' 6.8" 3' 10.2" 3' 10.8" 3' 11.5" 3' 10.6" 3' 10.1" 3' 9.4" 4' 1.5" 4' 2.1" 4' 3" 4' 4.2" 4' 3.5" 4' 2.6" 4' 7.9" 4' 8.8" 4' 10" 4' 9.7" 4' 8.8" 4' 7.7" 5' 2.5" 5' 3.7" 5' 5.2" 5' 8.6" 5' 7.2" 5' 5.6" 6' 3.9" 6' 5.7" 6' 8.1" 6' 7.2" 6' 5.3" 6' 3.1" 7' 5.5" 7' 8.2" 7' 11.7" 7' 5.6" 7' 3.1" 7' 0.3" 8' 7.5" 8' 11.2" 9' 4.1" 8' 3.8" 8' 0.7" 7' 9.1" 9' 9.8" 10' 2.7" 10' 9.4" 9' 1.8" 8' 10" 8' 5.6" 11' 0.5" 11' 6.8" 12' 3.6" 10' 9.2" 10' 3.8" 9' 9.8" 13' 6.9" 14' 4.8" 15' 7" 13' 1" 12' 4.9" 11' 8" 17' 7.5" 19' 0.9" 21' 3.3" 16' 8" 15' 6.8" 14' 4.7" 25' 1.3" 28' 2.9" 33' 6.1" 22' 11.3" 20' 10.4" 18' 9.1" 43' 7.9" 54' 4.8" 78' 10.2" 36' 9.8" 31' 7.6" 26' 11.3" 167' 0" 738' 2.1" INF 93' 0.7" 65' 4.6" 47' 9.2" INF INF INF

T/16 2' 3.1" 2' 5" 2' 4.9" 2' 7.2" 2' 7.6" 2' 10.6" 2' 8.4" 2' 11.8" 2' 10.2" 3' 2.1" 3' 0.8" 3' 5.6" 3' 3.4" 3' 9.2" 3' 5.9" 4' 0.8" 3' 8.4" 4' 4.5" 4' 1.2" 5' 0.1" 4' 6" 5' 7.9" 5' 3.1" 7' 0.5" 5' 11.7" 8' 6.4" 6' 7.9" 10' 1.6" 7' 3.7" 11' 10.6" 7' 11.1" 13' 9.3" 9' 0.9" 18' 1.3" 10' 7.5" 26' 5.1" 12' 9.5" 48' 10.6" 16' 1" 326' 7.3" 21' 7.8" INF 33' 1.1" INF

Feet T/22 2' 2.8" 2' 5.4" 2' 4.5" 2' 7.7" 2' 7.1" 2' 11.3" 2' 7.9" 3' 0.5" 2' 9.6" 3' 3" 3' 0.1" 3' 6.7" 3' 2.5" 3' 10.5" 3' 4.8" 4' 2.4" 3' 7.2" 4' 6.5" 3' 11.7" 5' 2.8" 4' 4.1" 5' 11.6" 5' 0.4" 7' 6.6" 5' 8.1" 9' 3.8" 6' 3.3" 11' 3.7" 6' 10.1" 13' 6.7" 7' 4.5" 16' 1.6" 8' 4.1" 22' 6.7" 9' 7.2" 37' 5.9" 11' 3.8" 111' 1.2" 13' 9.2" INF 17' 6.9" INF 24' 3.4" INF

27

Cooke Zoom 18-100mm U Feet 2' 4" 2' 6" 2' 9" 2' 10" 3' 0" 3' 3" 3' 6" 3' 9" 4' 0" 4' 6" 5' 0" 6' 0" 7' 0" 8' 0" 9' 0" 10' 0" 12' 0" 15' 0" 20' 0" 30' 0" 60' 0" INF

T/3 N 2' 3.9" F 2' 4.1" N 2' 5.9" F 2' 6.1" N 2' 8.8" F 2' 9.2" N 2' 9.8" F 2' 10.2" N 2' 11.8" F 3' 0.2" N 3' 2.7" F 3' 3.3" N 3' 5.6" F 3' 6.4" N 3' 8.6" F 3' 9.4" N 3' 11.5" F 4' 0.5" N 4' 5.4" F 4' 6.7" N 4' 11.2" F 5' 0.9" N 5' 10.8" F 6' 1.3" N 6' 10.2" F 7' 1.8" N 7' 9.7" F 8' 2.5" N 8' 9" F 9' 3.2" N 9' 8.2" F 10' 4" N 11' 6.5" F 12' 6" N 14' 3.3" F 15' 9.7" N 18' 8.4" F 21' 6" N 27' 1.4" F 33' 7.1" N 49' 3.4" F 76' 9.6" N 269' 10.4" F INF

T/4 2' 3.8" 2' 4.2" 2' 5.8" 2' 6.2" 2' 8.7" 2' 9.3" 2' 9.7" 2' 10.3" 2' 11.7" 3' 0.3" 3' 2.6" 3' 3.4" 3' 5.5" 3' 6.5" 3' 8.4" 3' 9.6" 3' 11.4" 4' 0.7" 4' 5.1" 4' 6.9" 4' 10.9" 5' 1.1" 5' 10.4" 6' 1.7" 6' 9.7" 7' 2.5" 7' 8.9" 8' 3.3" 8' 8" 9' 4.3" 9' 7" 10' 5.4" 11' 4.8" 12' 8.1" 14' 0.6" 16' 1.2" 18' 3.7" 22' 0.6" 26' 3.3" 34' 12" 46' 6.2" 84' 8.9" 202' 7.1" INF

F=75mm Apertures T/5.6 T/8 T/11 2' 3.8" 2' 3.7" 2' 3.6" 2' 4.2" 2' 4.3" 2' 4.5" 2' 5.7" 2' 5.6" 2' 5.5" 2' 6.3" 2' 6.4" 2' 6.6" 2' 8.6" 2' 8.5" 2' 8.3" 2' 9.4" 2' 9.5" 2' 9.7" 2' 9.6" 2' 9.5" 2' 9.3" 2' 10.4" 2' 10.6" 2' 10.8" 2' 11.6" 2' 11.4" 2' 11.1" 3' 0.5" 3' 0.7" 3' 0.9" 3' 2.5" 3' 2.2" 3' 2" 3' 3.6" 3' 3.8" 3' 4.1" 3' 5.3" 3' 5.1" 3' 4.7" 3' 6.7" 3' 7" 3' 7.4" 3' 8.2" 3' 7.9" 3' 7.5" 3' 9.8" 3' 10.2" 3' 10.6" 3' 11.1" 3' 10.7" 3' 10.3" 4' 0.9" 4' 1.4" 4' 1.9" 4' 4.8" 4' 4.3" 4' 3.7" 4' 7.3" 4' 7.8" 4' 8.5" 4' 10.5" 4' 9.9" 4' 9.1" 5' 1.6" 5' 2.3" 5' 3.3" 5' 9.7" 5' 8.8" 5' 7.7" 6' 2.5" 6' 3.6" 6' 5" 6' 8.8" 6' 7.5" 6' 6" 7' 3.5" 7' 5.1" 7' 7.2" 7' 7.7" 7' 6" 7' 4" 8' 4.7" 8' 6.9" 8' 9.8" 8' 6.5" 8' 4.4" 8' 1.8" 9' 6.2" 9' 9" 10' 0.9" 9' 5.2" 9' 2.5" 8' 11.4" 10' 7.8" 10' 11.5" 11' 4.4" 11' 2.1" 10' 10.3" 10' 5.8" 12' 11.6" 13' 5.3" 14' 0.9" 13' 8.4" 13' 2.6" 12' 7.9" 16' 7" 17' 4.6" 18' 5.9" 17' 8.5" 16' 10.7" 15' 11.6" 23' 0" 24' 7.2" 26' 11.3" 25' 0.5" 23' 4.7" 21' 7.5" 37' 6.1" 42' 0.7" 49' 7.4" 42' 8.4" 38' 0.4" 33' 5.9" 101' 7.1" 145' 0.1" 313' 1.4" 144' 11.2" 101' 8.2" 74' 1.9" INF INF INF

T/16 2' 3.4" 2' 4.7" 2' 5.2" 2' 6.8" 2' 8" 2' 10.1" 2' 8.9" 2' 11.2" 2' 10.8" 3' 1.3" 3' 1.5" 3' 4.7" 3' 4.2" 3' 8" 3' 6.9" 3' 11.4" 3' 9.5" 4' 2.8" 4' 2.8" 4' 9.8" 4' 7.9" 5' 4.9" 5' 5.9" 6' 7.6" 6' 3.5" 7' 11" 7' 0.8" 9' 3" 7' 9.8" 10' 7.9" 8' 6.5" 12' 1.6" 9' 11.1" 15' 3.6" 11' 10" 20' 8.6" 14' 7.8" 32' 1" 19' 2.7" 71' 0.6" 27' 11.5" INF 51' 2.7" INF

Feet T/22 2' 3.2" 2' 4.9" 2' 5" 2' 7.1" 2' 7.7" 2' 10.5" 2' 8.6" 2' 11.6" 2' 10.3" 3' 1.9" 3' 1" 3' 5.3" 3' 3.6" 3' 8.8" 3' 6.1" 4' 0.4" 3' 8.7" 4' 4" 4' 1.7" 4' 11.4" 4' 6.5" 5' 7" 5' 3.9" 6' 11" 6' 0.8" 8' 4" 6' 9.4" 9' 10.1" 7' 5.5" 11' 5.6" 8' 1.3" 13' 2.5" 9' 3.9" 17' 1.2" 10' 11.7" 24' 3.1" 13' 4" 41' 8.8" 16' 11.8" 149' 3.2" 23' 4.5" INF 37' 5.6" INF

28

Cooke Zoom 18-100mm U Feet 2' 4" 2' 6" 2' 9" 2' 10" 3' 0" 3' 3" 3' 6" 3' 9" 4' 0" 4' 6" 5' 0" 6' 0" 7' 0" 8' 0" 9' 0" 10' 0" 12' 0" 15' 0" 20' 0" 30' 0" 60' 0" INF

N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F N F

T/3 2' 3.9" 2' 4.1" 2' 5.9" 2' 6.1" 2' 8.9" 2' 9.1" 2' 9.9" 2' 10.1" 2' 11.9" 3' 0.1" 3' 2.8" 3' 3.2" 3' 5.8" 3' 6.2" 3' 8.8" 3' 9.2" 3' 11.7" 4' 0.3" 4' 5.6" 4' 6.4" 4' 11.5" 5' 0.5" 5' 11.3" 6' 0.7" 6' 11" 7' 1" 7' 10.6" 8' 1.4" 8' 10.3" 9' 1.8" 9' 9.8" 10' 2.3" 11' 8.8" 12' 3.3" 14' 6.9" 15' 5.4" 19' 2.9" 20' 9.9" 28' 3.6" 31' 11.1" 53' 5.2" 68' 5.2" 479' 1.7" INF

T/4 2' 3.9" 2' 4.1" 2' 5.9" 2' 6.1" 2' 8.9" 2' 9.2" 2' 9.8" 2' 10.2" 2' 11.8" 3' 0.2" 3' 2.8" 3' 3.2" 3' 5.7" 3' 6.3" 3' 8.7" 3' 9.3" 3' 11.6" 4' 0.4" 4' 5.5" 4' 6.5" 4' 11.4" 5' 0.7" 5' 11" 6' 1" 6' 10.7" 7' 1.4" 7' 10.2" 8' 1.9" 8' 9.7" 9' 2.4" 9' 9.1" 10' 3" 11' 7.8" 12' 4.5" 14' 5.3" 15' 7.2" 19' 0" 21' 1.3" 27' 9.3" 32' 7.5" 51' 6.7" 71' 9.6" 359' 6.5" INF

F=100mm T/5.6 2' 3.9" 2' 4.1" 2' 5.8" 2' 6.2" 2' 8.8" 2' 9.2" 2' 9.8" 2' 10.2" 2' 11.7" 3' 0.3" 3' 2.7" 3' 3.3" 3' 5.6" 3' 6.4" 3' 8.5" 3' 9.5" 3' 11.5" 4' 0.5" 4' 5.3" 4' 6.7" 4' 11.1" 5' 0.9" 5' 10.7" 6' 1.4" 6' 10.1" 7' 2" 7' 9.5" 8' 2.6" 8' 8.8" 9' 3.4" 9' 8" 10' 4.3" 11' 6.2" 12' 6.4" 14' 2.8" 15' 10.3" 18' 7.6" 21' 7.1" 26' 11.7" 33' 9.8" 48' 9.9" 77' 11.4" 257' 0.3" INF

Apertures T/8 T/11 2' 3.8" 2' 3.7" 2' 4.2" 2' 4.3" 2' 5.8" 2' 5.7" 2' 6.2" 2' 6.3" 2' 8.7" 2' 8.6" 2' 9.3" 2' 9.4" 2' 9.7" 2' 9.6" 2' 10.3" 2' 10.5" 2' 11.6" 2' 11.5" 3' 0.4" 3' 0.5" 3' 2.5" 3' 2.4" 3' 3.5" 3' 3.6" 3' 5.5" 3' 5.3" 3' 6.6" 3' 6.8" 3' 8.4" 3' 8.1" 3' 9.7" 3' 9.9" 3' 11.2" 3' 11" 4' 0.8" 4' 1.1" 4' 5" 4' 4.7" 4' 7" 4' 7.4" 4' 10.7" 4' 10.3" 5' 1.3" 5' 1.8" 5' 10.1" 5' 9.4" 6' 2" 6' 2.8" 6' 9.4" 6' 8.4" 7' 2.8" 7' 4" 7' 8.5" 7' 7.2" 8' 3.8" 8' 5.4" 8' 7.5" 8' 5.9" 9' 5" 9' 7" 9' 6.4" 9' 4.4" 10' 6.3" 10' 8.8" 11' 3.8" 11' 1" 12' 9.3" 13' 1.1" 13' 11.1" 13' 6.8" 16' 3.1" 16' 9.5" 18' 1.3" 17' 5.9" 22' 4.3" 23' 4.8" 25' 10.3" 24' 7.1" 35' 9.3" 38' 6.9" 45' 2.7" 41' 5.1" 89' 5.6" 109' 9.7" 180' 1.7" 131' 2.6" INF INF

T/16 2' 3.6" 2' 4.4" 2' 5.6" 2' 6.5" 2' 8.4" 2' 9.6" 2' 9.4" 2' 10.7" 2' 11.3" 3' 0.8" 3' 2.1" 3' 4" 3' 4.9" 3' 7.1" 3' 7.7" 3' 10.4" 3' 10.5" 4' 1.6" 4' 4.1" 4' 8.1" 4' 9.5" 5' 2.7" 5' 8.3" 6' 4.2" 6' 6.9" 7' 5.9" 7' 5.2" 8' 8" 8' 3.4" 9' 10.5" 9' 1.3" 11' 1.3" 10' 8.6" 13' 8" 13' 0.1" 17' 9.2" 16' 6.6" 25' 4.5" 22' 8.9" 44' 4.8" 36' 4.2" 177' 2.9" 90' 5.3" INF

Feet T/22 2' 3.5" 2' 4.5" 2' 5.4" 2' 6.7" 2' 8.2" 2' 9.8" 2' 9.1" 2' 10.9" 2' 11" 3' 1.1" 3' 1.8" 3' 4.3" 3' 4.5" 3' 7.6" 3' 7.3" 3' 10.9" 3' 10" 4' 2.2" 4' 3.4" 4' 9" 4' 8.7" 5' 3.8" 5' 7.1" 6' 5.9" 6' 5.1" 7' 8.4" 7' 3" 8' 11.4" 8' 0.5" 10' 3" 8' 9.8" 11' 7.1" 10' 3.7" 14' 5.1" 12' 4.8" 19' 1.2" 15' 6.7" 28' 3.1" 20' 10.5" 54' 3.3" 31' 8.6" 684' 9.6" 65' 11.7" INF

29

Cooke Zoom 18-100mm U Metres 0.70 N F 0.75 N F 0.80 N F 0.85 N F 0.90 N F 0.95 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.50 N F 1.70 N F 2.00 N F 2.50 N F 3.00 N F 4.00 N F 5.00 N F 7.00 N F 10.00 N F 20.00 N F INF N F

T/3.7 0.664 0.743 0.706 0.804 0.747 0.867 0.787 0.931 0.826 0.997 0.865 1.065 0.902 1.134 0.976 1.277 1.047 1.428 1.116 1.588 1.246 1.934 1.368 2.323 1.537 3.003 1.786 4.501 2.001 6.755 2.356 18.125 2.636 INF 3.049 INF 3.454 INF 4.087 INF 5.003 INF

T/5.6 0.654 0.759 0.693 0.825 0.731 0.893 0.769 0.964 0.805 1.037 0.841 1.112 0.876 1.190 0.943 1.355 1.007 1.532 1.068 1.724 1.184 2.157 1.290 2.672 1.433 3.659 1.640 6.314 1.814 12.271 2.089 INF 2.298 INF 2.595 INF 2.872 INF 3.280 INF 3.822 INF

F=18mm T/8 0.638 0.788 0.674 0.863 0.709 0.941 0.742 1.023 0.775 1.110 0.806 1.201 0.837 1.297 0.896 1.507 0.951 1.743 1.003 2.011 1.099 2.671 1.185 3.573 1.299 5.781 1.457 19.551 1.586 INF 1.781 INF 1.922 INF 2.114 INF 2.284 INF 2.520 INF 2.810 INF

Apertures T/11 0.617 0.838 0.648 0.929 0.679 1.028 0.708 1.134 0.735 1.250 0.762 1.377 0.788 1.516 0.836 1.839 0.881 2.239 0.923 2.748 0.997 4.341 1.063 7.851 1.147 94.214 1.260 INF 1.348 INF 1.475 INF 1.563 INF 1.678 INF 1.775 INF 1.903 INF 2.050 INF

T/16 0.593 0.917 0.621 1.038 0.646 1.174 0.671 1.330 0.694 1.511 0.716 1.721 0.737 1.969 0.776 2.632 0.812 3.675 0.844 5.554 0.901 32.154 0.950 INF 1.011 INF 1.090 INF 1.149 INF 1.232 INF 1.288 INF 1.357 INF 1.414 INF 1.487 INF 1.567 INF

T/22 0.561 1.113 0.583 1.329 0.603 1.608 0.622 1.982 0.640 2.506 0.657 3.297 0.672 4.626 0.701 15.805 0.726 INF 0.749 INF 0.788 INF 0.820 INF 0.860 INF 0.908 INF 0.944 INF 0.991 INF 1.022 INF 1.059 INF 1.089 INF 1.126 INF 1.165 INF

Metric T/32 0.530 1.597 0.547 2.229 0.563 3.460 0.577 6.914 0.591 74.624 0.603 INF 0.615 INF 0.636 INF 0.654 INF 0.670 INF 0.697 INF 0.718 INF 0.744 INF 0.775 INF 0.797 INF 0.826 INF 0.844 INF 0.865 INF 0.882 INF 0.902 INF 0.923 INF

30

Cooke Zoom 18-100mm U Metres 0.70 N F 0.75 N F 0.80 N F 0.85 N F 0.90 N F 0.95 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.50 N F 1.70 N F 2.00 N F 2.50 N F 3.00 N F 4.00 N F 5.00 N F 7.00 N F 10.00 N F 20.00 N F INF N F

T/3.7 0.680 0.722 0.725 0.778 0.770 0.834 0.814 0.891 0.858 0.948 0.902 1.006 0.945 1.065 1.029 1.185 1.112 1.308 1.194 1.434 1.352 1.695 1.504 1.971 1.721 2.411 2.059 3.231 2.367 4.180 2.913 6.609 3.380 10.152 4.137 26.243 4.971 INF 6.501 INF 9.386 INF

T/5.6 0.674 0.730 0.717 0.788 0.761 0.846 0.803 0.906 0.845 0.966 0.887 1.027 0.928 1.090 1.008 1.218 1.087 1.350 1.163 1.487 1.310 1.775 1.450 2.085 1.648 2.596 1.948 3.595 2.217 4.839 2.679 8.538 3.061 15.789 3.657 557.978 4.281 INF 5.344 INF 7.107 INF

F=25mm T/8 0.664 0.743 0.706 0.805 0.747 0.867 0.787 0.931 0.826 0.997 0.865 1.064 0.903 1.132 0.977 1.275 1.049 1.425 1.118 1.582 1.249 1.923 1.373 2.304 1.544 2.967 1.797 4.408 2.017 6.525 2.380 16.383 2.668 178.353 3.095 INF 3.517 INF 4.182 INF 5.155 INF

Apertures T/11 0.650 0.765 0.689 0.832 0.727 0.901 0.764 0.973 0.800 1.048 0.835 1.125 0.869 1.205 0.935 1.375 0.998 1.558 1.058 1.757 1.171 2.210 1.274 2.755 1.415 3.818 1.615 6.806 1.783 14.289 2.049 INF 2.250 INF 2.533 INF 2.797 INF 3.182 INF 3.690 INF

T/16 0.635 0.795 0.670 0.870 0.704 0.950 0.738 1.034 0.770 1.123 0.801 1.216 0.831 1.315 0.889 1.531 0.943 1.776 0.995 2.054 1.089 2.746 1.174 3.706 1.286 6.129 1.441 24.029 1.567 INF 1.758 INF 1.896 INF 2.082 INF 2.248 INF 2.477 INF 2.758 INF

T/22 0.611 0.853 0.642 0.948 0.672 1.051 0.700 1.163 0.727 1.286 0.753 1.422 0.778 1.571 0.825 1.922 0.868 2.366 0.909 2.946 0.981 4.866 1.044 9.782 1.125 INF 1.233 INF 1.317 INF 1.439 INF 1.523 INF 1.631 INF 1.723 INF 1.843 INF 1.981 INF

Metric T/32 0.586 0.943 0.613 1.072 0.638 1.220 0.662 1.391 0.684 1.591 0.706 1.828 0.726 2.113 0.764 2.903 0.798 4.236 0.829 6.969 0.884 INF 0.931 INF 0.989 INF 1.065 INF 1.121 INF 1.200 INF 1.252 INF 1.318 INF 1.372 INF 1.440 INF 1.516 INF

31

Cooke Zoom 18-100mm U Metres 0.70 N F 0.75 N F 0.80 N F 0.85 N F 0.90 N F 0.95 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.50 N F 1.70 N F 2.00 N F 2.50 N F 3.00 N F 4.00 N F 5.00 N F 7.00 N F 10.00 N F 20.00 N F INF N F

T/3.7 0.687 0.714 0.734 0.767 0.781 0.821 0.827 0.875 0.873 0.930 0.919 0.984 0.964 1.040 1.054 1.151 1.143 1.265 1.231 1.379 1.404 1.614 1.572 1.856 1.817 2.233 2.206 2.900 2.573 3.622 3.248 5.260 3.854 7.220 4.900 12.582 6.150 28.409 8.757 INF 15.197 INF

T/5.6 0.683 0.719 0.729 0.773 0.774 0.828 0.820 0.884 0.864 0.940 0.909 0.997 0.953 1.054 1.040 1.170 1.126 1.288 1.210 1.409 1.375 1.657 1.534 1.916 1.764 2.325 2.124 3.067 2.458 3.897 3.060 5.893 3.586 8.509 4.463 17.283 5.465 76.406 7.402 INF 11.464 INF

F=32mm T/8 0.676 0.727 0.721 0.783 0.765 0.841 0.808 0.899 0.851 0.957 0.894 1.017 0.936 1.078 1.019 1.201 1.099 1.328 1.178 1.459 1.331 1.732 1.478 2.022 1.686 2.492 2.007 3.383 2.297 4.446 2.804 7.324 3.232 11.982 3.914 43.984 4.648 INF 5.950 INF 8.264 INF

Apertures T/11 0.667 0.739 0.709 0.799 0.751 0.860 0.792 0.922 0.833 0.985 0.873 1.050 0.912 1.116 0.988 1.252 1.063 1.395 1.135 1.543 1.272 1.861 1.402 2.209 1.584 2.799 1.856 4.020 2.096 5.671 2.498 11.676 2.823 32.107 3.315 INF 3.812 INF 4.621 INF 5.865 INF

T/16 0.656 0.756 0.696 0.820 0.735 0.886 0.773 0.954 0.811 1.024 0.848 1.096 0.884 1.170 0.954 1.325 1.021 1.490 1.086 1.667 1.207 2.057 1.320 2.507 1.475 3.329 1.701 5.305 1.894 8.794 2.205 50.037 2.447 INF 2.795 INF 3.130 INF 3.636 INF 4.338 INF

T/22 0.638 0.786 0.675 0.859 0.710 0.935 0.745 1.014 0.778 1.097 0.811 1.185 0.842 1.276 0.903 1.473 0.960 1.692 1.015 1.936 1.116 2.519 1.207 3.277 1.329 4.965 1.500 11.998 1.641 231.607 1.858 INF 2.017 INF 2.236 INF 2.434 INF 2.713 INF 3.065 INF

Metric T/32 0.620 0.828 0.653 0.913 0.684 1.005 0.715 1.102 0.744 1.207 0.772 1.320 0.800 1.442 0.851 1.717 0.900 2.043 0.945 2.436 1.027 3.529 1.100 5.390 1.194 13.356 1.323 INF 1.425 INF 1.576 INF 1.682 INF 1.823 INF 1.945 INF 2.108 INF 2.302 INF

32

Cooke Zoom 18-100mm U Metres 0.70 N F 0.75 N F 0.80 N F 0.85 N F 0.90 N F 0.95 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.50 N F 1.70 N F 2.00 N F 2.50 N F 3.00 N F 4.00 N F 5.00 N F 7.00 N F 10.00 N F 20.00 N F INF N F

T/3.7 0.691 0.709 0.739 0.761 0.787 0.814 0.835 0.866 0.882 0.919 0.929 0.972 0.976 1.026 1.069 1.133 1.162 1.241 1.254 1.351 1.435 1.572 1.614 1.798 1.876 2.144 2.300 2.743 2.708 3.371 3.478 4.724 4.193 6.222 5.482 9.763 7.122 17.034 10.941 130.064 23.588 INF

T/5.6 0.688 0.712 0.736 0.765 0.783 0.818 0.830 0.872 0.876 0.926 0.922 0.980 0.968 1.035 1.060 1.145 1.150 1.256 1.239 1.369 1.415 1.598 1.588 1.833 1.839 2.197 2.241 2.836 2.624 3.518 3.335 5.032 3.982 6.783 5.117 11.267 6.507 22.351 9.524 INF 17.756 INF

F=40mm T/8 0.684 0.717 0.730 0.772 0.776 0.826 0.822 0.881 0.867 0.937 0.912 0.993 0.957 1.049 1.045 1.164 1.132 1.280 1.217 1.398 1.385 1.642 1.547 1.894 1.783 2.289 2.154 3.001 2.501 3.785 3.131 5.623 3.688 7.938 4.628 14.999 5.723 45.082 7.902 INF 12.756 INF

Apertures T/11 0.677 0.725 0.722 0.781 0.767 0.838 0.810 0.896 0.854 0.954 0.897 1.013 0.939 1.072 1.023 1.194 1.105 1.319 1.186 1.447 1.342 1.713 1.491 1.994 1.705 2.445 2.036 3.291 2.339 4.278 2.871 6.849 3.324 10.716 4.056 30.246 4.857 INF 6.312 INF 9.007 INF

T/16 0.669 0.736 0.712 0.794 0.755 0.854 0.797 0.915 0.838 0.977 0.879 1.039 0.919 1.103 0.998 1.235 1.074 1.371 1.149 1.513 1.292 1.813 1.428 2.137 1.619 2.677 1.908 3.753 2.166 5.129 2.605 9.482 2.965 19.342 3.522 INF 4.097 INF 5.062 INF 6.621 INF

T/22 0.657 0.754 0.697 0.817 0.737 0.882 0.776 0.949 0.814 1.018 0.851 1.088 0.888 1.161 0.959 1.312 1.028 1.472 1.094 1.641 1.219 2.014 1.335 2.438 1.496 3.196 1.732 4.943 1.934 7.788 2.265 27.875 2.524 INF 2.902 INF 3.268 INF 3.833 INF 4.633 INF

Metric T/32 0.643 0.778 0.680 0.847 0.717 0.920 0.753 0.995 0.787 1.074 0.821 1.155 0.854 1.240 0.918 1.421 0.978 1.619 1.036 1.835 1.144 2.336 1.242 2.955 1.375 4.215 1.564 8.182 1.721 22.074 1.968 INF 2.153 INF 2.411 INF 2.649 INF 2.993 INF 3.440 INF

33

Cooke Zoom 18-100mm U Metres 0.70 N F 0.75 N F 0.80 N F 0.85 N F 0.90 N F 0.95 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.50 N F 1.70 N F 2.00 N F 2.50 N F 3.00 N F 4.00 N F 5.00 N F 7.00 N F 10.00 N F 20.00 N F INF N F

T/3.7 0.694 0.706 0.743 0.758 0.791 0.809 0.840 0.861 0.888 0.913 0.936 0.965 0.984 1.017 1.080 1.121 1.175 1.227 1.269 1.333 1.457 1.546 1.643 1.762 1.918 2.091 2.367 2.651 2.804 3.229 3.646 4.436 4.447 5.720 5.939 8.548 7.934 13.585 13.049 43.481 36.704 INF

T/5.6 0.692 0.708 0.740 0.760 0.788 0.812 0.836 0.864 0.884 0.917 0.931 0.970 0.979 1.022 1.073 1.129 1.167 1.236 1.260 1.344 1.443 1.562 1.625 1.784 1.892 2.123 2.326 2.706 2.745 3.314 3.543 4.605 4.291 6.011 5.656 9.234 7.427 15.447 11.705 71.860 27.590 INF

F=50mm T/8 0.689 0.712 0.737 0.764 0.784 0.817 0.831 0.870 0.878 0.924 0.924 0.978 0.971 1.032 1.063 1.141 1.154 1.251 1.244 1.362 1.422 1.589 1.597 1.820 1.853 2.177 2.263 2.800 2.655 3.460 3.389 4.906 4.063 6.548 5.257 10.606 6.742 19.821 10.057 INF 19.779 INF

Apertures T/11 0.684 0.717 0.731 0.771 0.777 0.825 0.823 0.880 0.869 0.935 0.914 0.990 0.959 1.046 1.048 1.159 1.136 1.275 1.222 1.391 1.392 1.631 1.557 1.878 1.797 2.265 2.176 2.955 2.533 3.708 3.185 5.443 3.766 7.570 4.758 13.680 5.929 34.687 8.317 INF 13.920 INF

T/16 0.679 0.723 0.724 0.779 0.769 0.835 0.814 0.891 0.858 0.949 0.901 1.007 0.945 1.065 1.030 1.184 1.114 1.306 1.196 1.430 1.356 1.687 1.510 1.957 1.732 2.386 2.078 3.176 2.396 4.077 2.963 6.319 3.454 9.433 4.259 21.606 5.160 682.227 6.852 INF 10.192 INF

T/22 0.670 0.735 0.713 0.793 0.756 0.852 0.799 0.912 0.840 0.973 0.881 1.035 0.922 1.099 1.002 1.228 1.079 1.362 1.155 1.500 1.301 1.793 1.440 2.107 1.636 2.624 1.934 3.640 2.201 4.907 2.660 8.693 3.041 16.199 3.634 1303.792 4.256 INF 5.318 INF 7.085 INF

Metric T/32 0.660 0.749 0.701 0.811 0.742 0.874 0.781 0.939 0.821 1.005 0.859 1.073 0.897 1.143 0.970 1.287 1.042 1.438 1.111 1.597 1.242 1.941 1.365 2.325 1.535 2.991 1.789 4.435 2.010 6.543 2.376 16.159 2.667 137.970 3.101 INF 3.531 INF 4.213 INF 5.221 INF

34

Cooke Zoom 18-100mm U Metres 0.70 N F 0.75 N F 0.80 N F 0.85 N F 0.90 N F 0.95 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.50 N F 1.70 N F 2.00 N F 2.50 N F 3.00 N F 4.00 N F 5.00 N F 7.00 N F 10.00 N F 20.00 N F INF N F

T/3.7 0.696 0.704 0.745 0.755 0.794 0.806 0.843 0.858 0.891 0.909 0.940 0.960 0.989 1.012 1.085 1.115 1.182 1.219 1.278 1.323 1.469 1.532 1.659 1.743 1.941 2.063 2.405 2.604 2.860 3.156 3.745 4.294 4.600 5.480 6.224 8.008 8.463 12.244 14.586 31.981 52.737 INF

T/5.6 0.694 0.706 0.743 0.757 0.792 0.809 0.840 0.860 0.888 0.912 0.937 0.964 0.985 1.016 1.081 1.120 1.176 1.225 1.271 1.331 1.460 1.543 1.646 1.758 1.923 2.085 2.375 2.641 2.816 3.212 3.668 4.403 4.482 5.663 6.003 8.415 8.053 13.241 13.385 40.022 39.613 INF

F=60mm T/8 0.692 0.708 0.740 0.760 0.788 0.812 0.836 0.864 0.884 0.917 0.931 0.970 0.979 1.022 1.073 1.129 1.167 1.236 1.260 1.343 1.444 1.561 1.626 1.783 1.894 2.121 2.328 2.702 2.749 3.307 3.551 4.590 4.305 5.983 5.682 9.162 7.476 15.232 11.833 67.142 28.365 INF

Apertures T/11 0.689 0.712 0.736 0.765 0.783 0.818 0.830 0.871 0.877 0.924 0.924 0.978 0.970 1.032 1.062 1.141 1.153 1.252 1.244 1.363 1.422 1.590 1.596 1.821 1.852 2.178 2.263 2.801 2.655 3.460 3.390 4.903 4.065 6.540 5.262 10.579 6.754 19.705 10.089 INF 19.928 INF

T/16 0.685 0.717 0.731 0.770 0.778 0.824 0.823 0.879 0.869 0.934 0.915 0.989 0.960 1.045 1.049 1.158 1.137 1.273 1.224 1.389 1.395 1.627 1.561 1.872 1.803 2.255 2.186 2.935 2.547 3.675 3.210 5.365 3.803 7.411 4.821 13.140 6.031 31.283 8.530 INF 14.560 INF

T/22 0.678 0.724 0.723 0.780 0.768 0.836 0.812 0.893 0.856 0.951 0.900 1.009 0.943 1.068 1.028 1.187 1.111 1.309 1.193 1.434 1.352 1.693 1.506 1.964 1.727 2.397 2.071 3.194 2.387 4.104 2.951 6.378 3.437 9.557 4.236 22.218 5.128 3679.277 6.800 INF 10.086 INF

Metric T/32 0.670 0.734 0.714 0.792 0.757 0.851 0.799 0.911 0.841 0.972 0.883 1.034 0.923 1.096 1.004 1.225 1.082 1.357 1.158 1.494 1.306 1.782 1.446 2.090 1.645 2.596 1.949 3.578 2.222 4.786 2.694 8.288 3.087 14.779 3.705 141.679 4.358 INF 5.486 INF 7.402 INF

35

Cooke Zoom 18-100mm U Metres 0.70 N F 0.75 N F 0.80 N F 0.85 N F 0.90 N F 0.95 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.50 N F 1.70 N F 2.00 N F 2.50 N F 3.00 N F 4.00 N F 5.00 N F 7.00 N F 10.00 N F 20.00 N F INF N F

T/3.7 0.697 0.703 0.746 0.754 0.796 0.804 0.845 0.855 0.894 0.906 0.943 0.957 0.992 1.008 1.090 1.110 1.188 1.212 1.286 1.315 1.480 1.521 1.673 1.728 1.961 2.040 2.437 2.566 2.908 3.099 3.832 4.185 4.735 5.299 6.479 7.615 8.954 11.331 16.150 26.306 82.256 INF

T/5.6 0.696 0.704 0.745 0.755 0.794 0.806 0.843 0.857 0.892 0.908 0.941 0.959 0.990 1.010 1.087 1.113 1.184 1.216 1.281 1.320 1.473 1.528 1.664 1.737 1.949 2.054 2.417 2.589 2.878 3.134 3.779 4.250 4.653 5.407 6.323 7.846 8.654 11.859 15.180 29.409 61.751 INF

F=75mm T/8 0.695 0.705 0.743 0.757 0.792 0.808 0.841 0.860 0.889 0.911 0.938 0.963 0.986 1.015 1.082 1.119 1.178 1.223 1.273 1.328 1.463 1.540 1.651 1.753 1.929 2.077 2.386 2.627 2.832 3.191 3.698 4.360 4.527 5.590 6.089 8.247 8.214 12.817 13.852 36.271 44.175 INF

Apertures T/11 0.692 0.708 0.741 0.760 0.789 0.812 0.837 0.864 0.885 0.916 0.932 0.968 0.980 1.021 1.075 1.127 1.169 1.233 1.262 1.341 1.448 1.557 1.631 1.777 1.901 2.112 2.340 2.686 2.767 3.281 3.582 4.537 4.352 5.889 5.770 8.934 7.633 14.593 12.250 55.914 30.993 INF

T/16 0.690 0.711 0.737 0.763 0.785 0.816 0.832 0.869 0.879 0.922 0.926 0.976 0.973 1.029 1.066 1.137 1.158 1.246 1.249 1.357 1.429 1.580 1.606 1.808 1.866 2.158 2.286 2.764 2.689 3.401 3.449 4.780 4.153 6.315 5.416 9.979 7.017 17.668 10.710 175.005 22.605 INF

T/22 0.685 0.716 0.732 0.770 0.778 0.824 0.824 0.878 0.870 0.933 0.916 0.988 0.961 1.043 1.051 1.155 1.140 1.269 1.227 1.384 1.399 1.620 1.567 1.862 1.812 2.239 2.202 2.905 2.570 3.625 3.248 5.252 3.860 7.187 4.918 12.417 6.190 27.343 8.866 INF 15.614 INF

Metric T/32 0.680 0.722 0.725 0.777 0.770 0.833 0.815 0.889 0.860 0.946 0.904 1.003 0.948 1.061 1.034 1.178 1.119 1.298 1.202 1.420 1.366 1.671 1.524 1.933 1.752 2.346 2.109 3.098 2.441 3.939 3.038 5.966 3.561 8.632 4.433 17.645 5.430 81.412 7.361 INF 11.420 INF

36

Cooke Zoom 18-100mm U Metres 0.70 N F 0.75 N F 0.80 N F 0.85 N F 0.90 N F 0.95 N F 1.00 N F 1.10 N F 1.20 N F 1.30 N F 1.50 N F 1.70 N F 2.00 N F 2.50 N F 3.00 N F 4.00 N F 5.00 N F 7.00 N F 10.00 N F 20.00 N F INF N F

T/3.7 0.698 0.702 0.748 0.752 0.798 0.803 0.847 0.853 0.897 0.903 0.946 0.954 0.996 1.005 1.094 1.106 1.193 1.207 1.292 1.309 1.488 1.512 1.684 1.716 1.978 2.023 2.464 2.537 2.947 3.056 3.902 4.103 4.846 5.165 6.695 7.335 9.380 10.710 17.628 23.120 146.041 INF

T/5.6 0.698 0.702 0.747 0.753 0.797 0.803 0.846 0.854 0.895 0.905 0.945 0.955 0.994 1.006 1.092 1.108 1.191 1.209 1.289 1.311 1.484 1.516 1.679 1.721 1.970 2.031 2.452 2.550 2.929 3.075 3.871 4.138 4.796 5.222 6.600 7.454 9.191 10.970 16.959 24.391 109.587 INF

F=100mm T/8 0.697 0.703 0.746 0.754 0.795 0.805 0.845 0.856 0.894 0.906 0.943 0.957 0.992 1.008 1.090 1.111 1.187 1.213 1.284 1.316 1.478 1.523 1.671 1.730 1.959 2.043 2.433 2.571 2.902 3.106 3.822 4.197 4.720 5.317 6.452 7.653 8.903 11.414 15.990 26.747 78.341 INF

Apertures T/11 0.695 0.705 0.744 0.756 0.793 0.807 0.842 0.858 0.891 0.909 0.940 0.961 0.988 1.012 1.085 1.115 1.182 1.219 1.278 1.323 1.469 1.532 1.659 1.743 1.942 2.063 2.406 2.603 2.862 3.153 3.751 4.287 4.610 5.467 6.244 7.974 8.505 12.153 14.729 31.290 54.907 INF

T/16 0.694 0.706 0.742 0.758 0.791 0.809 0.839 0.861 0.888 0.913 0.936 0.965 0.984 1.017 1.080 1.121 1.175 1.226 1.270 1.332 1.458 1.545 1.644 1.760 1.921 2.087 2.372 2.644 2.813 3.216 3.665 4.407 4.479 5.666 6.002 8.415 8.056 13.228 13.411 39.753 39.994 INF

T/22 0.691 0.709 0.739 0.761 0.787 0.814 0.835 0.866 0.882 0.919 0.930 0.972 0.977 1.025 1.071 1.131 1.164 1.239 1.257 1.347 1.440 1.567 1.620 1.789 1.887 2.130 2.319 2.715 2.737 3.325 3.532 4.622 4.278 6.035 5.640 9.274 7.407 15.524 11.677 72.628 27.567 INF

Metric T/32 0.688 0.713 0.735 0.766 0.782 0.819 0.829 0.872 0.876 0.926 0.922 0.980 0.968 1.034 1.060 1.144 1.151 1.254 1.241 1.366 1.419 1.593 1.593 1.826 1.848 2.183 2.258 2.807 2.651 3.467 3.385 4.912 4.061 6.549 5.260 10.577 6.757 19.638 10.116 37808.22 20.110 INF

37

Cooke Cinetal Mk III Zoom 25-250mm U

F=25mm

Feet

Apertures

Feet

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

5' 6"

N F

4' 9.1" 6' 7.2"

4' 5.6" 7' 4.8"

4' 1.9" 8' 9.6"

3' 10" 11' 8.9"

3' 5.1" 29' 8.8"

3' 0.8" INF

2' 7.8" INF

6' 0"

N

5' 1.3"

4' 9.1"

4' 4.8"

4' 0.4"

3' 6.8"

3' 2"

2' 8.6"

F

7' 4.6"

8' 5.3"

10' 4.9"

15' 0.3"

76' 6.7"

INF

INF

6' 6"

N F

5' 5.3" 8' 2.6"

5' 0.5" 9' 7.2"

4' 7.5" 12' 3.8"

4' 2.5" 19' 8.4"

3' 8.4" INF

3' 3.1" INF

2' 9.3" INF

7' 0"

N F

5' 9.1" 9' 1.2"

5' 3.6" 10' 10.4"

4' 10" 14' 7.4"

4' 4.5" 26' 10.6"

3' 9.8" INF

3' 4.1" INF

2' 9.9" INF

8' 0"

N F

6' 4.5" 11' 0.2"

5' 9.6" 13' 10.3"

5' 2.7" 21' 0.1"

4' 8.2" 66' 3.4"

4' 0.3" INF

3' 5.9" INF

2' 11" INF

9' 0"

N F

6' 11.4" 13' 2.2"

6' 3.1" 17' 7.7"

5' 7" 31' 10.6"

4' 11.3" INF

4' 2.4" INF

3' 7.3" INF

2' 11.9" INF

10' 0"

N F

7' 5.9" 15' 7.7"

6' 8.1" 22' 6.9"

5' 10.8" 54' 5.8"

5' 2.1" INF

4' 4.3" INF

3' 8.5" INF

3' 0.6" INF

12' 0"

N

8' 5.7"

7' 5"

6' 5.3"

5' 6.9"

4' 7.3"

3' 10.5"

3' 1.7"

F

21' 8.9"

38' 11.3"

INF

INF

INF

INF

INF

15' 0"

N F

9' 9.1" 35' 7.6"

8' 4.2" 142' 2.8"

7' 1.2" INF

6' 0.4" INF

4' 10.7" INF

4' 0.6" INF

3' 2.9" INF

20' 0"

N 11' 6" F 98' 11.5"

9' 6.5" INF

7' 10.8" INF

6' 6.8" INF

5' 2.5" INF

4' 3" INF

3' 4.2" INF

30' 0"

N F

11' 1.5" INF

8' 10.9" INF

7' 2.5" INF

5' 6.8" INF

4' 5.5" INF

3' 5.5" INF

60' 0"

N 17' 10.5" F INF

13' 4" INF

10' 2.4" INF

7' 11.8" INF

5' 11.7" INF

4' 8.3" INF

3' 6.9" INF

16' 7.7" INF

11' 11.2" INF

8' 11.3" INF

6' 5.4" INF

4' 11.4" INF

3' 8.5" INF

INF

N F

13' 12" INF

24' 8.3" INF

38

Cooke Cinetal Mk III Zoom 25-250mm U

F=32mm

Feet

Apertures

Feet

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

5' 6"

N F

5' 0" 6' 1.6"

4' 9.5" 6' 6.4"

4' 6.6" 7' 1.6"

4' 3.4" 8' 1"

3' 11" 10' 6.6"

3' 6.9" 17' 3.5"

3' 1.8" INF

6' 0"

N

5' 4.8"

5' 1.7"

4' 10.3"

4' 6.6"

4' 1.6"

3' 8.9"

3' 3.2"

F

6' 9.5"

7' 3.5"

8' 0.9"

9' 4.5"

13' 0.1"

25' 10.6"

INF

6' 6"

N F

5' 9.4" 7' 5.6"

5' 5.8" 8' 1.2"

5' 1.8" 9' 1.2"

4' 9.6" 10' 10"

4' 3.9" 16' 2.6"

3' 10.7" 44' 9.3"

3' 4.4" INF

7' 0"

N F

6' 1.9" 8' 1.9"

5' 9.8" 8' 11.3"

5' 5.2" 10' 2.6"

5' 0.4" 12' 6.1"

4' 6.1" 20' 7"

4' 0.4" 120' 1.4"

3' 5.6" INF

8' 0"

N F

6' 10.7" 9' 7.4"

6' 5.3" 10' 9.2"

5' 11.6" 12' 9"

5' 5.7" 16' 8.5"

4' 10.1" 36' 7.6"

4' 3.3" INF

3' 7.5" INF

9' 0"

N F

7' 7.1" 11' 2"

7' 0.5" 12' 9.6"

6' 5.5" 15' 9.6"

5' 10.5" 22' 7.7"

5' 1.6" 93' 5.8"

4' 5.9" INF

3' 9.2" INF

10' 0"

N F

8' 3.1" 12' 9.9"

7' 7.2" 15' 1"

6' 11" 19' 6.5"

6' 2.9" 31' 7.5"

5' 4.8" INF

4' 8.1" INF

3' 10.6" INF

12' 0"

N

9' 6.2"

8' 7.5"

7' 8.9"

6' 10.5"

5' 10.1"

4' 11.9"

4' 0.9"

F

16' 5.9"

20' 7"

30' 4.2"

78' 4.6"

INF

INF

INF

15' 0"

N F

11' 2.7" 23' 1.4"

9' 11.7" 32' 5.3"

8' 9.3" 68' 0.1"

7' 7.9" INF

6' 4.4" INF

5' 4.1" INF

4' 3.5" INF

20' 0"

N F

13' 8.2" 38' 7.7"

11' 9.9" 76' 6.7"

10' 1.6" INF

8' 7.6" INF

6' 11.9" INF

5' 9" INF

4' 6.3" INF

30' 0"

N 17' 6.2" F 117' 9.5"

14' 6.2" INF

11' 11.9" INF

9' 10.8" INF

7' 9" INF

6' 2.7" INF

4' 9.4" INF

60' 0"

N F

24' 3.9" INF

18' 9.4" INF

14' 8" INF

11' 7.1" INF

8' 8.3" INF

6' 9.3" INF

5' 0.8" INF

INF

N F

39' 9.4" INF

26' 7.1" INF

18' 10.6" 13' 11.7" INF INF

9' 10.7" INF

7' 5.3" INF

5' 4.8" INF

39

Cooke Cinetal Mk III Zoom 25-250mm U

F=40mm

Feet

Apertures

Feet

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

5' 6"

N F

5' 1.9" 5' 10.8"

4' 12" 6' 1.6"

4' 9.8" 6' 5.6"

4' 7.3" 6' 11.3"

4' 3.7" 7' 11.2"

4' 0" 9' 7.9"

3' 7.2" 15' 7.9"

6' 0"

N

5' 7"

5' 4.7"

5' 2.1"

4' 11.2"

4' 7"

4' 2.7"

3' 9.2"

F

6' 6"

6' 9.5"

7' 2.5"

7' 9.8"

9' 1.8"

11' 7.2"

22' 0.5"

6' 6"

N F

6' 0.1" 7' 1.2"

5' 9.4" 7' 5.5"

5' 6.3" 7' 11.8"

5' 2.9" 8' 9.1"

4' 10.1" 10' 6.1"

4' 5.3" 13' 11.8"

3' 11.1" 33' 8.1"

7' 0"

N F

6' 5" 7' 8.6"

6' 1.9" 8' 1.8"

5' 10.4" 8' 9.5"

5' 6.5" 9' 9.1"

5' 1" 12' 0.5"

4' 7.7" 16' 11.8"

4' 0.9" 61' 7.1"

8' 0"

N F

7' 2.7" 8' 11.8"

6' 10.7" 9' 7.2"

6' 6.2" 10' 6.3"

6' 1.3" 11' 12"

5' 6.5" 15' 9.5"

5' 0.1" 26' 0.7"

4' 4.1" INF

9' 0"

N F

8' 0.2" 10' 3.6"

7' 7.2" 11' 1.6"

7' 1.6" 12' 5.2"

6' 7.6" 14' 7.3"

5' 11.5" 20' 10.2"

5' 4" 44' 7.8"

4' 6.8" INF

10' 0"

N F

8' 9.4" 11' 7.9"

8' 3.3" 12' 9.3"

7' 8.6" 14' 6.6"

7' 1.5" 17' 8.2"

6' 4.1" 28' 0.5"

5' 7.5" 104' 3"

4' 9.2" INF

12' 0"

N

10' 2.9"

9' 6.5"

8' 9.5"

8' 0.2"

7' 0.2"

6' 1.5"

5' 1.2"

F

14' 6.7"

16' 4.6"

19' 6.4"

25' 10.3"

58' 2.2"

INF

INF

15' 0"

N F

12' 3.6" 19' 4.4"

11' 3.3" 22' 10.3"

10' 2.6" 29' 8.6"

9' 1.9" 48' 1.6"

7' 10.1" INF

6' 8.7" INF

5' 5.9" INF

20' 0"

N 15' 4.5" F 28' 11.3"

13' 9.2" 37' 9.4"

12' 2.2" 62' 1.8"

10' 8.2" 349' 2.3"

8' 10.8" INF

7' 5.5" INF

5' 11.2" INF

30' 0"

N F

20' 6" 17' 8.2" 15' 1.2" 57' 2.4" 108' 11.5" INF

12' 9.7" INF

10' 3.3" INF

8' 4.3" INF

6' 5.5" INF

60' 0"

N 30' 9.2" 24' 8.5" F 2481' 9.3" INF

19' 10.1" 15' 11.8" INF INF

12' 1.8" INF

9' 6.2" INF

7' 1" INF

14' 10.4" INF

11' 0.5" INF

7' 10.1" INF

INF

N F

61' 7" INF

40' 11.6" INF

28' 11" INF

21' 3.1" INF

40

Cooke Cinetal Mk III Zoom 25-250mm U

F=50mm

Feet

Apertures

Feet

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

5' 6"

N F

5' 3.2" 5' 9.1"

5' 1.8" 5' 10.9"

5' 0.2" 6' 1.2"

4' 10.3" 6' 4.4"

4' 7.5" 6' 10.6"

4' 4.5" 7' 7.6"

4' 0.3" 9' 4.6"

6' 0"

N

5' 8.6"

5' 7"

5' 5"

5' 2.8"

4' 11.5"

4' 8"

4' 3.1"

F

6' 3.8"

6' 6"

6' 8.9"

7' 1"

7' 8.8"

8' 8.6"

11' 1.9"

6' 6"

N F

6' 1.9" 6' 10.6"

6' 0" 7' 1.2"

5' 9.8" 7' 4.8"

5' 7.2" 7' 9.8"

5' 3.3" 8' 7.6"

4' 11.3" 9' 10.9"

4' 5.7" 13' 3.4"

7' 0"

N F

6' 7.2" 7' 5.5"

6' 5" 7' 8.6"

6' 2.4" 8' 0.9"

5' 11.4" 8' 7"

5' 7" 9' 7.2"

5' 2.4" 11' 2.7"

4' 8.2" 15' 10.4"

8' 0"

N F

7' 5.7" 8' 7.4"

7' 2.8" 8' 11.7"

6' 11.4" 9' 5.8"

6' 7.5" 10' 2.5"

6' 1.9" 11' 8.6"

5' 8.3" 14' 4"

5' 0.8" 23' 2.9"

9' 0"

N F

8' 3.9" 9' 9.7"

8' 0.2" 10' 3.4"

7' 8" 7' 3.3" 10' 11.6" 11' 11.6"

6' 8.5" 14' 1.9"

6' 1.7" 18' 3.1"

5' 4.9" 36' 4.8"

10' 0"

N F

9' 1.9" 11' 0.3"

8' 9.5" 11' 7.7"

8' 4.3" 12' 6.4"

7' 10.6" 7' 2.6" 13' 10.6" 16' 11.8"

6' 6.7" 23' 4.6"

5' 8.6" 66' 7.5"

12' 0"

N

10' 9.5"

10' 3.2"

9' 8.1"

9' 0.3"

8' 1.7"

7' 3.6"

6' 3"

F

13' 6.5"

14' 6.1"

15' 11.6"

18' 3.4"

24' 3"

40' 5.1"

INF

15' 0"

N F

13' 1.4" 17' 6.7"

12' 4" 19' 3.2"

11' 5.6" 21' 11.9"

10' 6.7" 26' 9.2"

9' 4.1" 42' 4.7"

8' 2.7" 149' 4.2"

6' 10.7" INF

20' 0"

N 16' 8.7" F 24' 11.5"

15' 5.3" 28' 7.8"

14' 1.1" 35' 3.6"

12' 8.5" 10' 11.4" 49' 11.5" 168' 7.1"

9' 5.1" INF

7' 8.2" INF

30' 0"

N F

20' 7.8" 55' 10.5"

18' 3" 89' 6.3"

15' 11.5" 374' 8"

13' 2.8" INF

11' 0.3" INF

8' 8.2" INF

60' 0"

N 37' 2.2" 31' 2" 25' 10.9" F 159' 2.6" 1129' 5.4" INF

21' 5.3" INF

16' 8.6" INF

13' 3.4" INF

9' 11.6" INF

32' 8" INF

22' 8.2" INF

16' 8.4" INF

11' 8.5" INF

INF

N F

23' 0.9" 43' 1.8"

95' 8" INF

63' 5.5" INF

44' 7.7" INF

41

Cooke Cinetal Mk III Zoom 25-250mm U

F=60mm

Feet

Apertures

Feet

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

5' 6"

N F

5' 3.9" 5' 8.2"

5' 2.9" 5' 9.4"

5' 1.7" 5' 11"

5' 0.3" 6' 1.2"

4' 10" 6' 5"

4' 7.5" 6' 10.3"

4' 3.9" 7' 9.2"

6' 0"

N

5' 9.5"

5' 8.3"

5' 6.8"

5' 5.1"

5' 2.4"

4' 11.5"

4' 7.4"

F

6' 2.7"

6' 4.2"

6' 6.2"

6' 8.8"

7' 1.6"

7' 8.4"

8' 10.6"

6' 6"

N F

6' 3" 6' 9.2"

6' 1.6" 6' 11"

5' 11.9" 7' 1.4"

5' 9.9" 7' 4.6"

5' 6.7" 7' 10.6"

5' 3.4" 8' 7"

4' 10.6" 10' 1.4"

7' 0"

N F

6' 8.5" 7' 3.8"

6' 6.9" 7' 5.9"

6' 4.9" 7' 8.8"

6' 2.5" 8' 0.6"

5' 10.9" 8' 7.9"

5' 7.1" 9' 6.3"

5' 1.7" 11' 5.8"

8' 0"

N F

7' 7.4" 8' 5.1"

7' 5.2" 8' 8"

7' 2.6" 8' 11.9"

6' 11.6" 9' 5.3"

6' 7" 10' 3.6"

6' 2.2" 11' 7"

5' 7.5" 14' 8.5"

9' 0"

N F

8' 6.1" 9' 6.7"

8' 3.3" 9' 10.5"

8' 0.1" 10' 3.6"

7' 8.3" 10' 10.9"

7' 2.7" 12' 1.1"

6' 8.9" 13' 11.2"

6' 0.9" 18' 9.8"

10' 0"

N F

9' 4.7" 10' 8.4"

9' 1.3" 11' 1.3"

8' 9.3" 11' 7.9"

8' 4.7" 12' 5.4"

7' 10" 14' 0.5"

7' 3.1" 16' 7.6"

6' 5.8" 24' 2.9"

12' 0"

N

11' 1.4"

10' 8.6"

10' 3"

9' 8.7"

8' 11.6"

8' 2.5"

7' 2.5"

F

13' 0.6"

13' 8"

14' 6.4"

15' 9.7"

18' 6.3"

23' 5.3"

42' 8.9"

15' 0"

N F

13' 7.4" 16' 8.5"

13' 0.1" 17' 9.1"

12' 3.8" 19' 3.4"

11' 6.6" 21' 7.7"

10' 5.7" 27' 2.7"

9' 5.3" 39' 8.5"

8' 1.5" 180' 4.9"

20' 0"

N F

17' 7" 23' 2.7"

16' 6.7" 25' 4.1"

15' 5.2" 28' 7.9"

14' 2.7" 34' 3.7"

12' 7.3" 51' 4.1"

11' 1.3" 129' 8.9"

9' 3.6" INF

30' 0"

N F

24' 9.4" 38' 1.1"

22' 9.2" 44' 3.2"

20' 7.8" 55' 9"

18' 6.2" 82' 9"

15' 9.9" 449' 3.3"

13' 5.9" INF

10' 10.5" INF

60' 0"

N 41' 11.9" 36' 5" 31' 2.6" 26' 6.1" F 105' 9.6" 174' 9.7" 1019' 5.3" INF

21' 2.8" INF

17' 2.2" INF

13' 1.2" INF

N 137' 4.4" 90' 11.8" 63' 10.6" F INF INF INF

32' 3.2" INF

23' 7.7" INF

16' 5.5" INF

INF

46' 7.6" INF

42

Cooke Cinetal Mk III Zoom 25-250mm U

F=75mm

Feet

Apertures

Feet

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

5' 6"

N F

5' 4.6" 5' 7.5"

5' 3.9" 5' 8.3"

5' 3" 5' 9.3"

5' 2" 5' 10.6"

5' 0.4" 6' 1"

4' 10.5" 6' 4"

4' 7.7" 6' 9.8"

6' 0"

N

5' 10.3"

5' 9.5"

5' 8.4"

5' 7.2"

5' 5.2"

5' 3.1"

4' 11.8"

F

6' 1.8"

6' 2.7"

6' 4"

6' 5.6"

6' 8.5"

7' 0.3"

7' 7.6"

6' 6"

N F

6' 4" 6' 8.1"

6' 3" 6' 9.3"

6' 1.8" 6' 10.8"

6' 0.3" 7' 0.7"

5' 10.1" 7' 4.2"

5' 7.5" 7' 8.9"

5' 3.7" 8' 5.9"

7' 0"

N F

6' 9.6" 7' 2.5"

6' 8.5" 7' 3.9"

6' 7.1" 7' 5.6"

6' 5.4" 7' 7.9"

6' 2.8" 8' 0.1"

5' 11.8" 8' 5.7"

5' 7.5" 9' 4.8"

8' 0"

N F

7' 8.9" 8' 3.3"

7' 7.4" 8' 5.2"

7' 5.5" 8' 7.5"

7' 3.4" 8' 10.7"

6' 12" 9' 4.5"

6' 8.2" 10' 0.4"

6' 2.8" 11' 4.4"

9' 0"

N F

8' 8" 9' 4.3"

8' 6.1" 9' 6.7"

8' 3.8" 9' 9.8"

8' 1.1" 10' 2"

7' 8.8" 10' 9.7"

7' 4.2" 11' 8.4"

6' 9.6" 13' 7.1"

10' 0"

N F

9' 7.1" 10' 5.4"

9' 4.7" 10' 8.4"

9' 1.9" 11' 0.3"

8' 10.5" 11' 5.7"

8' 5.4" 12' 3.7"

7' 11.9" 13' 5.9"

7' 4" 16' 1.3"

12' 0"

N

11' 4.9"

11' 1.5"

10' 9.5"

10' 4.8"

9' 9.7"

9' 2.2"

8' 3.8"

F

12' 8"

13' 0.4"

13' 6.5"

14' 2.7"

15' 6.6"

17' 6.3"

22' 3.6"

15' 0"

N F

14' 0.8" 16' 0.8"

13' 7.6" 16' 8.2"

13' 1.5" 17' 6.3"

12' 6.5" 18' 8.6"

11' 8.2" 21' 1.5"

10' 9.6" 25' 0.1"

9' 7.3" 36' 2.9"

20' 0"

N 18' 4.3" F 21' 11.7"

17' 7.4" 23' 1.9"

16' 9.2" 24' 10.1"

15' 9.8" 27' 4.2"

14' 5.4" 32' 10.8"

13' 1.3" 43' 7.4"

11' 4.4" 96' 7.7"

30' 0"

N F

26' 4.9" 34' 9.1"

24' 10.6" 37' 10.2"

23' 2.3" 42' 7.9"

21' 4.6" 50' 9"

18' 11.3" 16' 8" 74' 4.9" 170' 6.1"

13' 11" INF

60' 0"

N F

47' 0.2" 83' 0.7"

42' 3.9" 103' 7"

37' 7.3" 33' 0.2" 150' 9.5" 352' 1.1"

27' 5.6" INF

22' 10.6" 17' 11.3" INF INF

INF

N F

214' 2" INF

141' 8.2" INF

99' 4.1" INF

49' 11.3" INF

36' 5.7" INF

72' 4.8" INF

25' 2.9" INF

43

Cooke Cinetal Mk III Zoom 25-250mm U

F=100mm

Feet

Apertures

Feet

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

5' 6"

N F

5' 5.1" 5' 6.9"

5' 4.7" 5' 7.3"

5' 4.2" 5' 7.9"

5' 3.5" 5' 8.7"

5' 2.5" 5' 10"

5' 1.2" 5' 11.6"

4' 11.3" 6' 2.6"

6' 0"

N

5' 11"

5' 10.5"

5' 9.8"

5' 9"

5' 7.8"

5' 6.3"

5' 4.1"

F

6' 1.1"

6' 1.6"

6' 2.3"

6' 3.2"

6' 4.8"

6' 6.8"

6' 10.4"

6' 6"

N F

6' 4.8" 6' 7.3"

6' 4.2" 6' 7.9"

6' 3.4" 6' 8.8"

6' 2.5" 6' 9.9"

6' 1" 6' 11.7"

5' 11.3" 7' 2.1"

5' 8.7" 7' 6.5"

7' 0"

N F

6' 10.6" 7' 1.5"

6' 9.9" 7' 2.2"

6' 9" 7' 3.2"

6' 7.9" 7' 4.5"

6' 6.2" 7' 6.8"

6' 4.3" 7' 9.6"

6' 1.3" 8' 2.8"

8' 0"

N F

7' 10.1" 8' 1.9"

7' 9.2" 8' 3"

7' 8.1" 8' 4.3"

7' 6.7" 8' 6"

7' 4.5" 8' 9"

7' 2" 9' 0.9"

6' 10.1" 9' 8"

9' 0"

N F

8' 9.6" 9' 2.5"

8' 8.5" 9' 3.8"

8' 7" 9' 5.5"

8' 5.3" 9' 7.7"

8' 2.5" 9' 11.6"

7' 11.4" 10' 4.7"

7' 6.6" 11' 2.3"

10' 0"

N F

9' 9.1" 10' 3.1"

9' 7.6" 10' 4.7"

9' 5.8" 10' 6.9"

9' 3.7" 10' 9.7"

9' 0.3" 11' 2.7"

8' 8.5" 11' 9.2"

8' 2.8" 12' 9.6"

12' 0"

N

11' 7.8"

11' 5.7"

11' 3.2"

11' 0.1"

10' 7.4"

10' 2.1"

9' 6.3"

F

12' 4.5"

12' 6.9"

12' 10.1"

13' 2.3"

13' 9.8"

14' 7.9"

16' 3.8"

15' 0"

N F

14' 5.4" 15' 7.2"

14' 2.2" 13' 10.3" 13' 5.7" 12' 10.6" 15' 11.1" 16' 4.3" 16' 11.2" 17' 11.8"

12' 2.8" 19' 5.4"

11' 3.6" 22' 6.1"

20' 0"

N F

19' 0.3" 21' 1"

18' 6.7" 21' 8.3"

18' 0" 22' 6.1"

17' 4.3" 23' 7.5"

16' 4.5" 25' 9"

15' 4.1" 13' 10.6" 28' 10.6" 36' 3.3"

30' 0"

N 27' 10.1" 26' 10.2" F 32' 6.4" 34' 0.1"

25' 8.3" 36' 0.9"

24' 4.6" 39' 0.7"

22' 5.7" 45' 3.6"

20' 6.7" 56' 1.1"

18' 0.1" 93' 4"

60' 0"

N 51' 10.5" F 71' 2"

48' 6.1" 78' 8.4"

44' 10.1" 40' 11.6" 35' 9.9" 90' 10.4" 112' 8" 188' 0.5"

31' 1.8" 965' 10"

25' 7.2" INF

N F

251' 3.8" 176' 0.5" 128' 1.7" INF INF INF

64' 3.3" INF

44' 3.7" INF

INF

380' 2" INF

88' 2.7" INF

44

Cooke Cinetal Mk III Zoom 25-250mm U

F=150mm

Feet

Apertures

Feet

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

5' 6"

N F

5' 5.6" 5' 6.4"

5' 5.4" 5' 6.7"

5' 5.1" 5' 6.9"

5' 4.8" 5' 7.3"

5' 4.2" 5' 7.9"

5' 3.6" 5' 8.6"

5' 2.5" 5' 9.9"

6' 0"

N

5' 11.5"

5' 11.2"

5' 10.9"

5' 10.5"

5' 9.9"

5' 9.1"

5' 7.9"

F

6' 0.5"

6' 0.8"

6' 1.1"

6' 1.5"

6' 2.3"

6' 3.2"

6' 4.7"

6' 6"

N F

6' 5.4" 6' 6.6"

6' 5.1" 6' 6.9"

6' 4.7" 6' 7.3"

6' 4.3" 6' 7.8"

6' 3.5" 6' 8.7"

6' 2.6" 6' 9.7"

6' 1.2" 6' 11.5"

7' 0"

N F

6' 11.3" 7' 0.7"

6' 11" 7' 1.1"

6' 10.5" 7' 1.5"

6' 10" 7' 2.1"

6' 9.1" 7' 3.1"

6' 8.1" 7' 4.3"

6' 6.4" 7' 6.4"

8' 0"

N F

7' 11.1" 8' 0.9"

7' 10.7" 8' 1.4"

7' 10.1" 8' 2"

7' 9.4" 8' 2.8"

7' 8.3" 8' 4.1"

7' 6.9" 8' 5.7"

7' 4.8" 8' 8.5"

9' 0"

N F

8' 10.9" 9' 1.2"

8' 10.3" 9' 1.8"

8' 9.6" 9' 2.5"

8' 8.7" 9' 3.5"

8' 7.3" 9' 5.2"

8' 5.6" 9' 7.3"

8' 3" 9' 10.9"

10' 0"

N F

9' 10.6" 10' 1.4"

9' 9.9" 10' 2.2"

9' 9" 10' 3.1"

9' 7.9" 10' 4.4"

9' 6.2" 10' 6.4"

9' 4.2" 10' 9"

9' 0.9" 11' 1.6"

12' 0"

N

11' 10"

11' 9"

11' 7.7"

11' 6.2"

11' 3.7"

11' 0.9"

10' 8.4"

F

12' 2.1"

12' 3.1"

12' 4.5"

12' 6.3"

12' 9.4"

13' 1.2"

13' 8.1"

15' 0"

N F

14' 8.9" 15' 3.2"

14' 7.3" 15' 4.9"

14' 5.4" 15' 7.1"

14' 3" 15' 10"

13' 11.3" 16' 2.9"

13' 6.9" 16' 9.1"

13' 0.2" 17' 8.5"

20' 0"

N F

19' 6.5" 20' 5.8"

19' 3.8" 20' 8.9"

19' 0.4" 21' 0.9"

18' 8.3" 21' 6"

18' 1.9" 22' 3.2"

17' 6.6" 23' 3"

16' 7.5" 25' 1.4"

30' 0"

N 28' 11.8" F 31' 1.1"

28' 5.8" 31' 8.3"

27' 10.5" 32' 5.7"

27' 1.9" 33' 6.1"

26' 0.5" 35' 4.7"

24' 9.7" 37' 11.5"

23' 0.1" 43' 2.1"

60' 0"

N F

54' 2.8" 67' 1.8"

52' 1" 70' 9.2"

49' 7.6" 75' 10.5"

46' 0.2" 86' 3.2"

42' 3.9" 37' 4" 103' 2.8" 153' 7.8"

INF

56' 0.7" 64' 6.5"

N 854' 8.1" 564' 9.1" 395' 4.7" 287' 7.3" 197' 9.5" 143' 10.8" 98' 11.9" F INF INF INF INF INF INF INF

45

Cooke Cinetal Mk III Zoom 25-250mm U

F=200mm

Feet

Apertures

Feet

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

5' 6"

N F

5' 5.7" 5' 6.3"

5' 5.6" 5' 6.4"

5' 5.5" 5' 6.6"

5' 5.3" 5' 6.8"

5' 4.9" 5' 7.1"

5' 4.5" 5' 7.5"

5' 3.9" 5' 8.3"

6' 0"

N

5' 11.7"

5' 11.5"

5' 11.4"

5' 11.1"

5' 10.7"

5' 10.3"

5' 9.5"

F

6' 0.3"

6' 0.5"

6' 0.7"

6' 0.9"

6' 1.3"

6' 1.8"

6' 2.7"

6' 6"

N F

6' 5.6" 6' 6.4"

6' 5.5" 6' 6.5"

6' 5.2" 6' 6.8"

6' 5" 6' 7.1"

6' 4.5" 6' 7.6"

6' 4" 6' 8.2"

6' 3.1" 6' 9.2"

7' 0"

N F

6' 11.6" 7' 0.4"

6' 11.4" 7' 0.6"

6' 11.1" 7' 0.9"

6' 10.8" 7' 1.2"

6' 10.3" 7' 1.8"

6' 9.6" 7' 2.5"

6' 8.6" 7' 3.7"

8' 0"

N F

7' 11.5" 8' 0.5"

7' 11.2" 8' 0.8"

7' 10.9" 8' 1.2"

7' 10.4" 8' 1.6"

7' 9.8" 8' 2.4"

7' 8.9" 8' 3.3"

7' 7.6" 8' 4.8"

9' 0"

N F

8' 11.3" 9' 0.7"

8' 11" 9' 1"

8' 10.6" 9' 1.5"

8' 10" 9' 2"

8' 9.2" 9' 3"

8' 8.2" 9' 4.1"

8' 6.5" 9' 6.1"

10' 0"

N F

9' 11.2" 10' 0.8"

9' 10.8" 10' 1.3"

9' 10.2" 10' 1.8"

9' 9.6" 10' 2.5"

9' 8.5" 10' 3.7"

9' 7.3" 10' 5.1"

9' 5.3" 10' 7.6"

12' 0"

N 11' 10.8" 11' 10.2"

11' 9.5"

11' 8.6"

11' 7.1"

11' 5.3"

11' 2.5"

F

12' 1.2"

12' 1.8"

12' 2.6"

12' 3.6"

12' 5.3"

12' 7.4"

12' 11"

15' 0"

N 14' 10.2" F 15' 1.9"

14' 9.3" 15' 2.8"

14' 8.1" 15' 4"

14' 6.7" 15' 5.6"

14' 4.4" 15' 8.3"

14' 1.7" 15' 11.6"

13' 9.4" 16' 5.4"

20' 0"

N F

19' 8.8" 20' 3.3"

19' 7.2" 20' 5"

19' 5.2" 20' 7.2"

19' 2.8" 20' 10"

18' 10.8" 21' 2.9"

18' 6.2" 21' 8.9"

17' 11" 22' 7.7"

30' 0"

N F

29' 4.9" 30' 7.4"

29' 1.4" 30' 11.3"

28' 9" 31' 4.3"

28' 3.7" 27' 7.3" 31' 10.8" 32' 10.2"

26' 9.6" 34' 0.8"

25' 6.8" 36' 3.7"

60' 0"

N F

57' 8.4" 62' 5.9"

56' 7.1" 63' 10.2"

55' 2.9" 65' 7.9"

53' 7.8" 68' 0.7"

48' 6.2" 78' 7.5"

44' 7.6" 91' 6.6"

INF

N 1519' 1.8" 1003' 9" F INF INF

51' 2.2" 72' 5.9"

702' 7.7" 511' 0.4" 351' 4.3" 255' 6.6" 175' 8.6" INF INF INF INF INF

46

Cooke Cinetal Mk III Zoom 25-250mm U

F=250mm

Feet

Apertures

Feet

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

5' 6"

N F

5' 5.8" 5' 6.2"

5' 5.7" 5' 6.3"

5' 5.6" 5' 6.4"

5' 5.5" 5' 6.5"

5' 5.3" 5' 6.7"

5' 5" 5' 7"

5' 4.6" 5' 7.5"

6' 0"

N

5' 11.8"

5' 11.7"

5' 11.6"

5' 11.4"

5' 11.1"

5' 10.8"

5' 10.3"

F

6' 0.2"

6' 0.3"

6' 0.4"

6' 0.6"

6' 0.9"

6' 1.2"

6' 1.8"

6' 6"

N F

6' 5.8" 6' 6.2"

6' 5.6" 6' 6.4"

6' 5.5" 6' 6.5"

6' 5.3" 6' 6.7"

6' 5" 6' 7"

6' 4.6" 6' 7.4"

6' 4" 6' 8.1"

7' 0"

N F

6' 11.7" 7' 0.3"

6' 11.6" 7' 0.4"

6' 11.4" 7' 0.6"

6' 11.2" 7' 0.8"

6' 10.8" 7' 1.2"

6' 10.4" 7' 1.7"

6' 9.7" 7' 2.4"

8' 0"

N F

7' 11.6" 8' 0.4"

7' 11.5" 8' 0.5"

7' 11.2" 8' 0.8"

7' 11" 8' 1.1"

7' 10.5" 8' 1.6"

7' 9.9" 8' 2.1"

7' 9" 8' 3.2"

9' 0"

N F

8' 11.6" 9' 0.4"

8' 11.3" 9' 0.7"

8' 11" 9' 1"

8' 10.7" 9' 1.3"

8' 10.1" 9' 2"

8' 9.4" 9' 2.7"

8' 8.3" 9' 4"

10' 0"

N F

9' 11.5" 10' 0.5"

9' 11.2" 10' 0.8"

9' 10.8" 10' 1.2"

9' 10.4" 10' 1.6"

9' 9.7" 10' 2.4"

9' 8.8" 10' 3.3"

9' 7.5" 10' 4.9"

12' 0"

N 11' 11.2" 11' 10.8" 11' 10.3"

11' 9.7"

11' 8.7"

11' 7.5"

11' 5.6"

F

12' 1.2"

12' 1.7"

12' 2.3"

12' 3.4"

12' 4.8"

12' 7"

15' 0"

N 14' 10.8" 14' 10.2" F 15' 1.2" 15' 1.8"

14' 9.4" 15' 2.6"

14' 8.5" 15' 3.6"

14' 7" 15' 5.3"

14' 5.1" 15' 7.4"

14' 2.2" 15' 11"

20' 0"

N F

19' 9.9" 20' 2.1"

19' 8.9" 20' 3.2"

19' 7.5" 20' 4.6"

19' 5.9" 20' 6.4"

19' 3.2" 20' 9.5"

19' 0.1" 21' 1.2"

18' 7.1" 21' 7.7"

30' 0"

N F

29' 7.4" 30' 4.7"

29' 5.1" 30' 7.2"

29' 2.2" 28' 10.6" 30' 10.4" 31' 2.5"

28' 4.8" 31' 9.4"

27' 10.2" 26' 11.6" 32' 6.2" 33' 9.6"

60' 0"

N F

58' 6" 61' 7"

57' 9.1" 62' 5.1"

56' 10.2" 55' 9" 63' 6.3" 64' 11.4"

54' 0.1" 67' 5.8"

52' 0.7" 70' 9.6"

INF

12' 0.8"

49' 1.3" 77' 1.2"

N 2373' 6.3" 1568' 2.5" 1097' 8.8" 798' 4.1" 548' 10.1" 399' 1.8" 274' 4.8" F INF INF INF INF INF INF INF

47

Cooke Cinetal Mk III Zoom 25-250mm U

F=25mm

Metric

Apertures

Metres

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

1.70

N F

1.467 2.048

1.375 2.302

1.278 2.754

1.178 3.715

1.051 10.089

0.939 INF

0.811 INF

1.80

N

1.536

1.434

1.326

1.217

1.079

0.960

0.825

F

2.205

2.512

3.074

4.365

18.262

INF

INF

1.90

N F

1.604 2.369

1.491 2.734

1.373 3.432

1.254 5.178

1.106 66.968

0.979 INF

0.837 INF

2.00

N F

1.670 2.538

1.546 2.971

1.417 3.834

1.290 6.222

1.131 INF

0.997 INF

0.848 INF

2.20

N F

1.798 2.895

1.651 3.495

1.502 4.809

1.356 9.563

1.177 INF

1.029 INF

0.869 INF

2.50

N F

1.979 3.486

1.797 4.435

1.616 6.928

1.444 27.062

1.238 INF

1.071 INF

0.894 INF

2.70

N F

2.094 3.920

1.888 5.196

1.686 9.114

1.496 8772.531

1.273 INF

1.095 INF

0.908 INF

3.00

N

2.258

2.015

1.783

1.568

1.320

1.126

0.927

F

4.644

6.615

15.068

INF

INF

INF

INF

3.50

N F

2.509 6.092

2.206 10.203

1.924 95.151

1.670 INF

1.386 INF

1.169 INF

0.952 INF

4.00

N F

2.738 7.953

2.374 17.218

2.045 INF

1.755 INF

1.440 INF

1.204 INF

0.971 INF

5.00

N F

3.138 13.907

2.658 478.109

2.242 INF

1.891 INF

1.522 INF

1.255 INF

0.999 INF

7.00

N F

3.766 97.029

3.077 INF

2.519 INF

2.073 INF

1.627 INF

1.319 INF

1.033 INF

10.00

N F

4.431 INF

3.489 INF

2.776 INF

2.234 INF

1.716 INF

1.371 INF

1.060 INF

20.00

N

5.579

4.135

3.149

2.456

1.832

1.437

1.093

F

INF

INF

INF

INF

INF

INF

INF

N F

7.527 INF

5.072 INF

3.638 INF

2.726 INF

1.965 INF

1.509 INF

1.129 INF

INF

48

Cooke Cinetal Mk III Zoom 25-250mm U

F=32mm

Metric

Apertures

Metres

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

1.70

N F

1.544 1.900

1.476 2.026

1.401 2.216

1.318 2.522

1.205 3.319

1.098 5.579

0.965 INF

1.80

N

1.623

1.547

1.462

1.371

1.247

1.131

0.988

F

2.031

2.179

2.406

2.778

3.809

7.255

INF

1.90

N F

1.701 2.164

1.616 2.337

1.523 2.605

1.423 3.057

1.287 4.388

1.162 9.929

1.010 INF

2.00

N F

1.777 2.301

1.684 2.499

1.581 2.815

1.472 3.361

1.326 5.086

1.191 14.874

1.030 INF

2.20

N F

1.927 2.581

1.815 2.842

1.693 3.270

1.566 4.058

1.398 7.015

1.246 108.143

1.067 INF

2.50

N F

2.144 3.024

2.002 3.402

1.851 4.059

1.695 5.407

1.495 12.904

1.318 INF

1.115 INF

2.70

N F

2.283 3.335

2.120 3.810

1.949 4.672

1.775 6.600

1.553 23.768

1.360 INF

1.142 INF

3.00

N

2.485

2.290

2.088

1.885

1.633

1.418

1.179

F

3.827

4.482

5.760

9.118

INF

INF

INF

3.50

N F

2.804 4.723

2.552 5.798

2.297 8.226

2.049 17.921

1.748 INF

1.499 INF

1.229 INF

4.00

N F

3.103 5.730

2.792 7.438

2.485 12.123

2.192 65.196

1.845 INF

1.565 INF

1.270 INF

5.00

N F

3.646 8.170

3.214 12.317

2.804 36.066

2.428 INF

2.001 INF

1.669 INF

1.331 INF

7.00

N F

4.558 15.922

3.884 49.353

3.286 INF

2.769 INF

2.215 INF

1.806 INF

1.408 INF

10.00

N F

5.608 55.307

4.604 INF

3.772 INF

3.095 INF

2.407 INF

1.924 INF

1.471 INF

20.00

N

7.670

5.873

4.558

3.586

2.677

2.081

1.553

F

INF

INF

INF

INF

INF

INF

INF

N F

12.127 INF

8.105 INF

5.756 INF

4.261 INF

3.015 INF

2.268 INF

1.645 INF

INF

49

Cooke Cinetal Mk III Zoom 25-250mm U

F=40mm

Metric

Apertures

Metres

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

1.70

N F

1.592 1.827

1.543 1.901

1.485 2.005

1.420 2.156

1.326 2.473

1.231 3.029

1.105 5.015

1.80

N

1.677

1.622

1.557

1.485

1.380

1.276

1.140

F

1.946

2.031

2.153

2.331

2.715

3.416

6.268

1.90

N F

1.762 2.066

1.700 2.164

1.628 2.306

1.548 2.514

1.433 2.975

1.320 3.857

1.172 8.076

2.00

N F

1.846 2.187

1.777 2.300

1.698 2.462

1.609 2.706

1.484 3.257

1.361 4.365

1.203 10.914

2.20

N F

2.011 2.435

1.927 2.579

1.832 2.790

1.728 3.115

1.581 3.893

1.440 5.651

1.261 27.844

2.50

N F

2.252 2.818

2.145 3.018

2.025 3.321

1.895 3.808

1.716 5.086

1.547 8.750

1.337 INF

2.70

N F

2.410 3.081

2.286 3.326

2.148 3.704

2.000 4.332

1.799 6.104

1.611 12.470

1.383 INF

3.00

N

2.640

2.489

2.324

2.149

1.915

1.700

1.444

F

3.488

3.812

4.329

5.231

8.142

26.651

INF

3.50

N F

3.010 4.202

2.811 4.695

2.598 5.527

2.377 7.139

2.088 14.277

1.830 INF

1.531 INF

4.00

N F

3.363 4.965

3.113 5.683

2.849 6.977

2.581 9.828

2.239 32.872

1.941 INF

1.603 INF

5.00

N F

4.024 6.658

3.663 8.056

3.296 11.028

2.935 20.814

2.492 INF

2.121 INF

1.717 INF

7.00

N F

5.189 10.908

4.591 15.417

4.015 32.825

3.479 INF

2.860 INF

2.372 INF

1.868 INF

10.00

N F

6.628 20.936

5.666 49.029

4.799 INF

4.041 INF

3.217 INF

2.603 INF

1.999 INF

20.00

N

9.797

7.795

6.215

4.978

3.763

2.935

2.178

F

INF

INF

INF

INF

INF

INF

INF

N F

18.770 INF

12.486 INF

8.815 INF

6.479 INF

4.532 INF

3.364 INF

2.391 INF

INF

50

Cooke Cinetal Mk III Zoom 25-250mm U

F=50mm

Metric

Apertures

Metres

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

1.70

N F

1.626 1.782

1.591 1.828

1.549 1.890

1.500 1.975

1.426 2.136

1.347 2.375

1.237 2.939

1.80

N

1.716

1.676

1.629

1.574

1.492

1.405

1.284

F

1.894

1.947

2.018

2.116

2.306

2.591

3.292

1.90

N F

1.806 2.006

1.761 2.066

1.708 2.148

1.647 2.262

1.556 2.483

1.461 2.822

1.329 3.688

2.00

N F

1.894 2.120

1.845 2.188

1.787 2.281

1.719 2.410

1.619 2.667

1.515 3.068

1.373 4.136

2.20

N F

2.071 2.349

2.011 2.434

1.940 2.553

1.859 2.720

1.740 3.059

1.619 3.611

1.454 5.238

2.50

N F

2.331 2.699

2.253 2.816

2.163 2.979

2.061 3.215

1.912 3.714

1.763 4.586

1.566 7.701

2.70

N F

2.501 2.937

2.411 3.077

2.307 3.277

2.189 3.569

2.021 4.203

1.853 5.376

1.634 10.345

3.00

N

2.753

2.642

2.516

2.375

2.175

1.979

1.728

F

3.301

3.482

3.744

4.137

5.032

6.850

18.137

3.50

N F

3.162 3.926

3.014 4.191

2.847 4.584

2.665 5.202

2.412 6.741

2.169 10.584

1.866 590.171

4.00

N F

3.559 4.576

3.370 4.945

3.160 5.513

2.934 6.448

2.626 9.048

2.337 17.910

1.984 INF

5.00

N F

4.317 5.957

4.037 6.614

3.734 7.696

3.416 9.701

2.998 17.371

2.621 592.415

2.178 INF

7.00

N F

5.706 9.093

5.217 10.765

4.710 14.059

4.206 22.925

3.577 INF

3.043 INF

2.451 INF

10.00

N F

7.521 15.028

6.680 20.342

5.860 37.023

5.088 INF

4.183 INF

3.461 INF

2.706 INF

20.00

N

11.958

9.931

8.192

6.734

5.213

4.120

3.078

F

63.045

INF

INF

INF

INF

INF

INF

N F

29.160 INF

19.342 INF

13.606 INF

9.956 INF

6.914 INF

5.089 INF

3.569 INF

INF

51

Cooke Cinetal Mk III Zoom 25-250mm U

F=60mm

Metric

Apertures

Metres

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

1.70

N F

1.646 1.758

1.620 1.790

1.588 1.832

1.550 1.888

1.491 1.990

1.427 2.130

1.333 2.418

1.80

N

1.739

1.709

1.673

1.631

1.565

1.494

1.390

F

1.866

1.903

1.951

2.015

2.133

2.297

2.641

1.90

N F

1.831 1.975

1.798 2.016

1.758 2.071

1.710 2.144

1.637 2.280

1.559 2.470

1.445 2.879

2.00

N F

1.923 2.084

1.886 2.130

1.841 2.192

1.789 2.276

1.709 2.431

1.622 2.651

1.498 3.133

2.20

N F

2.106 2.304

2.061 2.362

2.007 2.440

1.944 2.545

1.848 2.744

1.745 3.033

1.601 3.695

2.50

N F

2.377 2.638

2.318 2.716

2.249 2.821

2.168 2.966

2.047 3.247

1.920 3.669

1.743 4.711

2.70

N F

2.555 2.864

2.487 2.956

2.407 3.083

2.314 3.259

2.175 3.605

2.031 4.140

1.832 5.538

3.00

N

2.820

2.736

2.638

2.525

2.359

2.188

1.956

F

3.207

3.325

3.488

3.718

4.183

4.933

7.095

3.50

N F

3.254 3.790

3.141 3.959

3.010 4.197

2.861 4.541

2.646 5.268

2.430 6.543

2.143 11.117

4.00

N F

3.678 4.388

3.532 4.620

3.365 4.953

3.179 5.446

2.912 6.542

2.650 8.665

2.309 19.343

5.00

N F

4.498 5.634

4.279 6.030

4.033 6.620

3.763 7.550

3.390 9.889

3.033 15.875

2.588 INF

7.00

N F

6.038 8.341

5.643 9.258

5.214 10.761

4.764 13.524

4.171 23.822

3.635 325.723

3.004 INF

10.00

N F

8.124 13.039

7.415 15.471

6.682 20.272

5.952 33.268

5.042 INF

4.270 INF

3.415 INF

20.00

N

13.608

11.701

9.950

8.391

6.667

5.363

4.064

F

38.035

71.276

INF

INF

INF

INF

INF

N F

41.869 INF

27.731 INF

19.471 INF

14.215 INF

9.834 INF

7.206 INF

5.017 INF

INF

52

Cooke Cinetal Mk III Zoom 25-250mm U

F=75mm

Metric

Apertures

Metres

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

1.70

N F

1.663 1.739

1.645 1.759

1.623 1.786

1.595 1.821

1.552 1.883

1.504 1.963

1.431 2.115

1.80

N

1.758

1.738

1.713

1.682

1.634

1.580

1.499

F

1.844

1.867

1.898

1.938

2.008

2.101

2.278

1.90

N F

1.853 1.949

1.830 1.976

1.802 2.010

1.768 2.056

1.715 2.136

1.655 2.242

1.565 2.446

2.00

N F

1.948 2.055

1.922 2.085

1.891 2.124

1.853 2.175

1.794 2.265

1.728 2.386

1.630 2.621

2.20

N F

2.136 2.268

2.105 2.305

2.067 2.353

2.022 2.416

1.951 2.530

1.872 2.684

1.756 2.989

2.50

N F

2.417 2.590

2.376 2.638

2.327 2.703

2.269 2.788

2.179 2.944

2.080 3.157

1.935 3.596

2.70

N F

2.603 2.806

2.555 2.863

2.498 2.940

2.431 3.042

2.326 3.230

2.213 3.491

2.049 4.042

3.00

N

2.879

2.821

2.751

2.668

2.542

2.406

2.211

F

3.132

3.205

3.303

3.434

3.678

4.024

4.782

3.50

N F

3.334 3.684

3.255 3.787

3.161 3.925

3.051 4.114

2.885 4.475

2.709 5.006

2.462 6.256

4.00

N F

3.783 4.245

3.681 4.383

3.560 4.572

3.420 4.832

3.210 5.344

2.992 6.127

2.690 8.137

5.00

N F

4.661 5.394

4.505 5.622

4.323 5.941

4.115 6.396

3.812 7.338

3.504 8.926

3.093 14.054

7.00

N F

6.344 7.811

6.054 8.307

5.725 9.034

5.361 10.149

4.851 12.794

4.357 18.680

3.730 83.155

10.00

N F

8.701 11.765

8.159 12.943

7.565 14.823

6.937 18.125

6.097 28.927

5.329 103.538

4.412 INF

20.00

N

15.355

13.725

12.106

10.555

8.707

7.204

5.608

F

28.736

37.086

58.695

218.229

INF

INF

INF

N F

65.277 INF

43.186 INF

30.280 INF

22.067 INF

15.223 INF

11.117 INF

7.695 INF

INF

53

Cooke Cinetal Mk III Zoom 25-250mm U

F=100mm

Metric

Apertures

Metres

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

1.70

N F

1.678 1.723

1.666 1.735

1.652 1.751

1.635 1.771

1.608 1.805

1.576 1.848

1.525 1.924

1.80

N

1.775

1.762

1.746

1.727

1.696

1.660

1.604

F

1.826

1.840

1.857

1.880

1.919

1.968

2.055

1.90

N F

1.872 1.929

1.858 1.945

1.840 1.964

1.819 1.990

1.784 2.033

1.744 2.089

1.682 2.188

2.00

N F

1.969 2.032

1.953 2.050

1.933 2.072

1.910 2.100

1.871 2.149

1.828 2.211

1.759 2.324

2.20

N F

2.162 2.240

2.143 2.261

2.119 2.288

2.090 2.323

2.044 2.383

1.992 2.461

1.910 2.602

2.50

N F

2.450 2.552

2.426 2.579

2.395 2.615

2.358 2.661

2.299 2.742

2.232 2.846

2.130 3.038

2.70

N F

2.642 2.761

2.613 2.793

2.577 2.835

2.535 2.890

2.466 2.986

2.389 3.110

2.271 3.343

3.00

N

2.928

2.892

2.849

2.796

2.712

2.619

2.477

F

3.076

3.116

3.169

3.238

3.359

3.519

3.822

3.50

N F

3.402 3.604

3.353 3.661

3.294 3.734

3.223 3.831

3.112 4.004

2.989 4.234

2.804 4.684

4.00

N F

3.871 4.138

3.808 4.213

3.732 4.311

3.641 4.441

3.499 4.676

3.343 4.995

3.112 5.638

5.00

N F

4.799 5.219

4.702 5.339

4.585 5.500

4.447 5.715

4.236 6.114

4.007 6.675

3.678 7.886

7.00

N F

6.609 7.441

6.425 7.690

6.207 8.031

5.955 8.501

5.578 9.424

5.186 10.841

4.643 14.489

10.00

N F

9.216 10.932

8.860 11.482

8.448 12.263

7.985 13.403

7.318 15.869

6.653 20.385

5.781 38.930

20.00

N

17.074

15.883

14.598

13.259

11.505

9.932

8.097

F

24.146

27.028

31.834

40.948

78.485

INF

INF

N F

115.876 INF

76.602 INF

53.658 INF

39.057 INF

26.890 INF

19.590 INF

13.506 INF

INF

54

Cooke Cinetal Mk III Zoom 25-250mm U

F=150mm

Metric

Apertures

Metres

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

1.70

N F

1.689 1.711

1.683 1.717

1.676 1.724

1.668 1.734

1.653 1.750

1.637 1.769

1.609 1.802

1.80

N

1.788

1.781

1.773

1.764

1.748

1.729

1.699

F

1.813

1.819

1.827

1.838

1.856

1.877

1.915

1.90

N F

1.886 1.914

1.879 1.921

1.870 1.931

1.860 1.942

1.842 1.962

1.821 1.987

1.787 2.029

2.00

N F

1.985 2.016

1.977 2.024

1.967 2.034

1.955 2.047

1.936 2.069

1.913 2.096

1.875 2.143

2.20

N F

2.181 2.219

2.172 2.229

2.160 2.241

2.146 2.257

2.122 2.284

2.095 2.317

2.050 2.375

2.50

N F

2.476 2.524

2.464 2.537

2.449 2.553

2.430 2.574

2.400 2.609

2.365 2.652

2.308 2.728

2.70

N F

2.672 2.728

2.658 2.743

2.641 2.762

2.619 2.786

2.584 2.828

2.543 2.879

2.477 2.968

3.00

N

2.966

2.948

2.927

2.900

2.857

2.807

2.727

F

3.035

3.054

3.077

3.107

3.158

3.222

3.335

3.50

N F

3.453 3.548

3.430 3.573

3.401 3.605

3.365 3.647

3.307 3.717

3.240 3.806

3.135 3.964

4.00

N F

3.939 4.063

3.909 4.096

3.871 4.138

3.825 4.193

3.750 4.286

3.664 4.405

3.530 4.618

5.00

N F

4.905 5.098

4.858 5.150

4.800 5.218

4.729 5.304

4.615 5.455

4.486 5.649

4.287 6.003

7.00

N F

6.816 7.194

6.726 7.298

6.614 7.434

6.481 7.611

6.269 7.926

6.034 8.340

5.678 9.136

10.00

N F

9.629 10.401

9.450 10.619

9.232 10.909

8.974 11.294

8.574 12.000

8.139 12.975

7.506 15.008

20.00

N

18.572

17.915

17.150

16.280

15.012

13.730

12.020

F

21.667

22.636

23.992

25.934

29.981

36.895

59.966

N F

260.505 INF

172.139 INF

120.515 INF

87.663 INF

60.287 INF

43.861 INF

30.173 INF

INF

55

Cooke Cinetal Mk III Zoom 25-250mm U

F=200mm

Metric

Apertures

Metres

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

1.70

N F

1.693 1.707

1.690 1.710

1.686 1.714

1.681 1.720

1.672 1.729

1.661 1.740

1.645 1.759

1.80

N

1.793

1.789

1.784

1.778

1.768

1.757

1.738

F

1.807

1.811

1.816

1.822

1.833

1.845

1.867

1.90

N F

1.892 1.908

1.888 1.913

1.882 1.918

1.876 1.925

1.865 1.936

1.852 1.950

1.831 1.974

2.00

N F

1.991 2.009

1.986 2.014

1.980 2.020

1.973 2.028

1.961 2.040

1.947 2.056

1.924 2.082

2.20

N F

2.189 2.211

2.183 2.217

2.176 2.224

2.168 2.233

2.153 2.249

2.136 2.268

2.109 2.300

2.50

N F

2.486 2.514

2.479 2.522

2.470 2.531

2.459 2.543

2.440 2.563

2.419 2.587

2.383 2.629

2.70

N F

2.684 2.717

2.675 2.725

2.665 2.736

2.652 2.750

2.631 2.773

2.605 2.802

2.565 2.851

3.00

N

2.980

2.970

2.957

2.941

2.915

2.884

2.834

F

3.020

3.031

3.044

3.062

3.090

3.126

3.186

3.50

N F

3.473 3.528

3.459 3.542

3.442 3.560

3.420 3.584

3.385 3.623

3.344 3.671

3.278 3.755

4.00

N F

3.965 4.036

3.947 4.055

3.924 4.079

3.897 4.109

3.851 4.161

3.798 4.225

3.713 4.335

5.00

N F

4.945 5.056

4.917 5.085

4.883 5.123

4.840 5.171

4.771 5.252

4.690 5.354

4.562 5.531

7.00

N F

6.894 7.110

6.840 7.167

6.774 7.242

6.693 7.337

6.562 7.501

6.412 7.708

6.176 8.079

10.00

N F

9.786 10.224

9.679 10.343

9.548 10.498

9.388 10.697

9.134 11.047

8.847 11.499

8.407 12.341

20.00

N

19.166

18.764

18.280

17.709

16.832

15.889

14.532

F

20.910

21.411

22.078

22.973

24.639

26.987

32.083

N F

463.037 INF

305.942 INF

214.166 INF

155.763 INF

107.094 INF

77.892 INF

53.558 INF

INF

56

Cooke Cinetal Mk III Zoom 25-250mm U

F=250mm

Metric

Apertures

Metres

T/3.7

T/5.6

T/8

T/11

T/16

T/22

T/32

1.70

N F

1.696 1.704

1.693 1.707

1.690 1.710

1.687 1.713

1.681 1.720

1.674 1.727

1.662 1.739

1.80

N

1.795

1.792

1.789

1.785

1.779

1.771

1.758

F

1.805

1.808

1.811

1.815

1.822

1.830

1.844

1.90

N F

1.894 1.906

1.892 1.908

1.888 1.912

1.884 1.917

1.876 1.924

1.868 1.933

1.853 1.949

2.00

N F

1.994 2.006

1.991 2.009

1.987 2.013

1.982 2.018

1.974 2.027

1.964 2.037

1.949 2.054

2.20

N F

2.193 2.207

2.189 2.211

2.184 2.216

2.178 2.222

2.169 2.232

2.157 2.245

2.138 2.265

2.50

N F

2.491 2.509

2.486 2.514

2.480 2.521

2.472 2.528

2.460 2.541

2.445 2.557

2.421 2.584

2.70

N F

2.689 2.711

2.684 2.717

2.677 2.724

2.668 2.733

2.654 2.748

2.637 2.767

2.609 2.798

3.00

N

2.987

2.980

2.971

2.961

2.943

2.922

2.888

F

3.013

3.020

3.029

3.040

3.059

3.082

3.121

3.50

N F

3.482 3.518

3.473 3.528

3.461 3.540

3.447 3.555

3.423 3.580

3.396 3.611

3.350 3.664

4.00

N F

3.977 4.024

3.965 4.036

3.950 4.051

3.931 4.071

3.901 4.104

3.865 4.145

3.807 4.214

5.00

N F

4.964 5.037

4.946 5.056

4.923 5.080

4.894 5.110

4.848 5.162

4.793 5.226

4.705 5.335

7.00

N F

6.930 7.071

6.895 7.108

6.851 7.155

6.797 7.215

6.709 7.317

6.606 7.444

6.441 7.665

10.00

N F

9.860 10.144

9.790 10.219

9.702 10.316

9.595 10.440

9.422 10.654

9.222 10.921

8.907 11.398

20.00

N

19.455

19.186

18.858

18.462

17.839

17.144

16.099

F

20.577

20.886

21.290

21.817

22.757

23.998

26.395

N F

723.450 INF

477.989 INF

334.589 INF

243.334 INF

167.288 INF

121.661 INF

83.638 INF

INF

57