Nikon Nikkor Z 20 mm f/1.8 S
6. Distortion
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As in the case of chromatic aberration correction the mirrorless 1.8/20 model fared better than its reflex camera equivalent, in distortion category the trend is reversed.
Slight barrel distortion of the Nikkor Z 20 mm f/1.8 S can be noticed already on the APS-C/DX sensor where it reaches −1.14%. On passing to full frame the aberration increases but only slightly, to −2.10%. Still it should be emphasized that very slight increase was reached with the introduction of delicate moustache distortion. If you limit your measurements to the 1:1 markings area distortion increases to −2.38%. That value is perhaps neither very bothersome nor especially high but it should be remembered that the result of the Nikkor AF-S 20 mm f/1.8G ED was −1.53%. That result proves that the performance could have been a bit better.
| Nikon Z7, 20 mm, APS-C/DX | |||
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| Nikon Z7, 20 mm, FF | |||
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