50mm Prime with Resolution for a D800? Come on Nikon/Sigma!

Started Jan 4, 2014 | Questions thread
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Scott McMorrow Regular Member • Posts: 366
Re: 50mm Prime with Resolution for a D800? Come on Nikon/Sigma!
1

I don't agree. I shoot fashion. Explain to me how I get moiré all the time if my lenses weren't up to the resolution of the D800.

It's not just resolution that is important.  It is resolution at high contrast.  Moire, being a repeating pattern alias phenomenon is very easy to spot even at even low contrast levels, such as MTF 10, where the contrast between a white line and a black line is 10%. When you talk about resolution, the contrast level that it is measured at is important.  MTF 50 (Lines/something at 50% contrast) is usually the most often used measure, but there are others.

Being able to see Moire in a photograph just means that there is some non-zero image contrast getting through above the pixel pitch resolution.

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