12-05-2015, 02:43 PM
Quote:Just want you to know,
<div style="color:rgb(20,24,35);font-family:helvetica, arial, sans-serif;">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 "the-digital-picture.com" (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.
At Dxo I compared sharpness on field map. Measurements -> sharpness -> Field map
"the-digital-picture" is faking test results in favour of Canon.