HR/ HHHR diffraction limits

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glassoholic
glassoholic Senior Member • Posts: 3,424
HR/ HHHR diffraction limits

Table below from "Cambridge In Color" for 4/3 sensor suggests use of f2.6 for 80mp and f3.3 for 50mp HR shots as smallest apertures to be sure diffraction does not limit resolution. They note also that for a 20mp files, onset of diffraction is at f5.2.

So other than colour improvements, is there anything to be gained doing HR at f4 to f8?

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