Diffraction Effects (Example Photos)

Started Nov 27, 2011 | Discussions thread
DvD5
Contributing MemberPosts: 831
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Two extremes here...
In reply to AV Janus, Nov 28, 2011

Just to demonstrate two extremes of focal length, I performed a test with the 24mm PC-E lens and the 500mm f/4 G. You can see in both cases, there is a small difference between f/8 and f/11. f11 to f16 a bit bigger, then f/16 to f/22 a large step. The 500mm doesn't go to f/32, so couldn't test that.

So, it looks like the practice matches the theory again.

24mm PC-E (100%):

500mm f/4G (100%):

Don
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