Canon EF 50 mm f/1.8 STM
6. Distortion
|
|
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 | |||
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| Canon 5D MkIII, 50 mm | |||
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