Diffraction Effects (Example Photos)

Started Nov 27, 2011 | Discussions thread
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James Bligh
Senior MemberPosts: 1,776
Re: What camera did you shoot these pictures with?
In reply to DvD5, Nov 28, 2011

DvD5 wrote:

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%):

We are talking about diffraction here. What camera did you shoot these pictures with? I think you have forgotten to mention it.

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