f/1.8 on m4/3, ASP-C, FF; are they the same?

Started Nov 1, 2010 | Discussions thread
Gao Gao
Contributing MemberPosts: 545
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One more thing while we are still at it
In reply to Everdog, Nov 3, 2010

The effect of diffraction on the printed pictures can be estimated based on the equivalent F-stop, not the nominal value.

For a certain print size, assuming sufficient pixel resolution and lens resolution, FF may become diffraction-limited at, say, F/16 while 4/3 at F/8.

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