LensTip.com

Lens review

Canon EF 50 mm f/1.8 STM

11 July 2015
Szymon Starczewski

6. Distortion

A chart below shows a comparison between results of different 50 mm lenses in the distortion category.


Canon
1.8/50 STM
Canon
1.8/50 II
Nikkor
AF-S 1.8/50G
Nikkor
AF 1.8/50D
Minolta
1.7/50
Canon
EF 1.4/50
APS-C/DX
−0.41%
−0.39%
−0.49%
−0.20%
-0.30%
-0.49%
FF
−1.31%
−1.28%
−1.18%
−0.49%
−0.68%
−1.98%


Taking into account the fact that distortion measurement errors amount here to about 0.1-0.2% the results reached by the Canon EF 50 mm f/1.8 II and the Canon EF 50 mm f/1.8 STM are the same. What’s more, it is practically the same level as that of the Nikkor AF-S 50 mm f/1.8 G. All these results don’t make us concerned anyway but it would be nice if the full frame distortion didn’t exceed –1%. After all it is possible and older Minolta and Nikon constructions proved it.

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Canon 50D, 50 mm
Canon EF 50 mm f/1.8 STM - Distortion
Canon 5D MkIII, 50 mm
Canon EF 50 mm f/1.8 STM - Distortion