The workshop today was to observe lens distortion..Pin cushion-Barrel- etc on a given lens at two different focal lengths
I chose to use my 24-70L at 24 and 70mm
We were required to take a shot of a given test target on the wall for each of the lens's main f-stops> in this case f2.8-f22
These are the results
@70mm
f22
f16
f11
f8
f5.6
f4
f2.8
f2.8
f4
f5.6
f8
f11
f16
f22
As I was using an L series lens the distortion (if any) is almost academic as I am not able to discern much if any distortion.
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