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

Started 8 months ago | Questions thread
Scott McMorrow
Regular MemberPosts: 355
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Re: 50mm Prime with Resolution for a D800? Come on Nikon/Sigma!
In reply to Mikael Risedal, 8 months ago

Moire means that the lens out resolves the sensor

But what you do not say is the contrast at which this occurs.  Moire, bring a repetitive pattern, is very easy to spot, and therefore quite sensitive even with very little contrast.  A D800 sensor has the ability to resolve with extremely high contrast.  Most lenses, however, have extremely low contrast at the full resolution of the D800 sensor, due to aberations.  You cannot speak of resolution without specifying the level of contrast it is measured at.  Moire will be more easily discernible than the original contrast in the scene.

The difference between the Zeiss Otus lens and a Nikon 50mm f/1.4G is the contrast at 2456 lp/ph resolution.

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