What does the '3D-effect' in Zeiss lenses mean?

Started Dec 7, 2011 | Discussions thread
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Hammon Photo
Regular MemberPosts: 111
Re: Strongly non-linear fall off in sharpness once out of the focal plane
In reply to physguy88, Dec 9, 2011

That is some of it - the ability to achieve sharpness at a wider aprature giving you that faster fall off. I think edge contrast makes the shape edge to out of focus area more dramatic. This is probably due to a high level of flare control. Lens flare will lower the contrast of sharp edges not necessarily the sharpness. On a less quality lens, the edge may be sharp (sharpness) but some lens flare from the bright side if the edge to the dark side of the edge will lower the edge contrast making the edge less dramatic.
Mark Hammon
Hammon Photography

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