Canon EF 100-400 mm f/4.5-5.6L IS II USM review - Distortion

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Canon EF 100-400 mm f/4.5-5.6L IS II USM

24 June 2015

Arkadiusz Olech

6. Distortion

Telephoto lenses of this class usually don’t experience any geometric deformation problems and the Canon 100-400L II is not an exception to that rule. On the smaller sensor of the EOS 50D it would be really hard to notice any distortion. At 100 mm you can observe a residue of barrel distortion of −0.33%, which, at 200 mm, changes into equally insignificant pincushion of +0.28%. At 300 and 400 mm that aberration increases to respectively +0.41% and +0.52%.

On full frame these values get a bit lower. At 100 mm the “barrel” reaches −0.97% only to become zero with the increase of the focal length; at 200 mm it already turns into “pincushion” of +0.56%. At 300 mm focal length we got a result of +1.03% and at 400 mm the lens reaches the highest value of +1.34% which still is nothing you should worry about.

Canon 50D, 100 mm

Canon 50D, 200 mm

Canon 50D, 300 mm

Canon 50D, 400 mm

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