Sigma_Nikkor_Tokina_etc (version Samyang's) - Michel Thoby

Angle from the lens axis (degrees) in the object space. Distance fro m center o f the FF senso r (mm) and measured o n the image. Tokina 10-17 mm @ 15 mm.
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Canon 8-15 mm f4 L USM Image radial mapping compared with Tokina 10-17 mm (@15 and @16mm), Canon 15 mm f2.8, Samyang 8mm and Sigma 8mm f3.5

Distance from center of the FF sensor (mm) and measured on the image

25

20

15

10

5

0 0

15

30

45

60

75

90

105

Angle from the lens axis (degrees) in the object space Color key: Tokina 10-17 mm @ 15 mm

Tokina 10-17 mm @ 16 mm

Canon 15 mm f2.8 prime

Sigma 8 mm f3.5

Samyang 8 mm

(Canon 8-15mm @ 8mm)

(Canon 8-15mm @ 9mm)

(Canon 8-15mm @ 10mm)

(Canon 8-15mm @ 11mm)

(Canon 8-15mm @ 12mm)

(Canon 8-15mm @ 13mm)

(Canon 8-15mm @ 14mm)

(Canon 8-15mm @ 15mm)

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