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Canon EF 35mm f/1.4 L II corners vs Sigma AF 35mm f/1.4 Art corners
Hello, may I question results from your test of canon 35mm f1,4 mark II because it is inconsistent with other tests on internet. When I compare your MTF(resolution) result from canon 35mm f1,4 II on 5DS R and Sigmas 35mm f1,4 on 20 megapixels than sigma outperforms canon on the edges at f1,4 despite that 5DS R have more megapixels and has AA filter cancelation.
When I compare this same setup on Dxomark (links below) than sigma has pronouncedly worst corner performance. I know, they use different approach but when I also compare this setup on "" (link below) I can optically see pronouncedly better performance with canons 35mm mark II. The difference can be seen in both comparison of 1Ds mark III R vs 1Ds mark III and 5DS R vs 1Ds mark III. By this I meant no offence, I just want to know that your finding are correct and if they are correct than how should I interpret them or what cause the difference. Thank you.
Sincerely Jan.
At Dxo I compared sharpness on field map. Measurements -> sharpness -> Field map

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Canon EF 35mm f/1.4 L II corners vs Sigma AF 35mm f/1.4 Art corners - by Jan S - 12-01-2015, 01:25 PM

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