Diffraction f/Entekaphobia

Started Feb 5, 2014 | Discussions thread
bigpigbig Senior Member • Posts: 1,738
Re: Diffraction and reality

Leonard Shepherd wrote:

The laws of optics have always said diffraction limited results are usually better at f16 than f1.4 to f4,

I respect your knowledge, but I am confused.

Isn't this somewhat irrelevant?

I normally consider diffraction in deciding whether to shoot at f8, f11, f16 or f22. If diffraction is a concern, isn't usually because one is trying to gain depth of field by decreasing aperture?

Comparing the sharpness at f1.4, 2.0, 2.8 to f11, f16, and f22 seems pointless to me.

Can you explain why this comparison is important?

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