The whole question of lens sharpness...

Started Jun 12, 2013 | Discussions thread
Mark Scott Abeln
Veteran MemberPosts: 4,100Gear list
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Sharpness versus contrast
In reply to gdourado, Jun 17, 2013

How I think about lens sharpness versus contrast:

The top row is sharp, the bottom row is soft, while the lefthand column shows high contrast, and the right column shows low contrast.

I have an antique Nikon lens which is quite sharp, but it is rather low contrast since its glass is not coated. The histogram of images produced by this lens almost never goes full scale, and I correct for this in post-processing. The detail captured by the lens is otherwise excellent, and other lens defects are minimal.

On the other hand, I have a newer multicoated lens which has plenty of contrast — many of my images are simultaneously over-and-underexposed in places — but it is not particularly sharp, largely due, I think, to the considerable fringing of chromatic aberration. I can remove the fringes, but the softness still remains.

 Mark Scott Abeln's gear list:Mark Scott Abeln's gear list
Nikon D200 Nikon D7000 Nikon AF-S DX Nikkor 35mm f/1.8G Nikon AF Nikkor 50mm f/1.8D Rokinon 85mm F1.4
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