Canon EF 85 mm f/1.4L IS USM
6. Distortion
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The newest full frame 85 mm instruments correct distortion in practically perfect manner. Such lenses as the Sigma A 1.4/85 and the Zeiss Otus 1.4/85 had results which, within the margin of error, were equal with zero. How does the Canon compare? It fares noticeably weaker. In fact its performance is closer to older constructions and lags behind even the result of the Milvus, a bit worse than the results of the aforementioned Sigma and Otus.
On the smaller APS-C/DX sensor we got +0.38% so, in the absolute sense exactly the same as the result of the Milvus … but on full frame. After passing to full frame the distortion of the Canon increased to +1.30%. To be honest I don’t remember a fast, full frame 85 mm lens with a lower result in this category.
| Canon 50D, 85 mm | |||
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| Canon 5D MkIII, 85 mm | |||
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