Diffraction Effects (Example Photos)

Started Nov 27, 2011 | Discussions thread
rhlpetrus Forum Pro • Posts: 25,823
Correct Re: Realistic viewing distances.

People forget about the very simple rule about image parameters: it depends on output size and viewing distance. And varies according to sensor or film sizes/formats given the amount of enlargement needed to go from original film/sensor size to final output same small blurred disk will show more if enlargement factor was higher).

And: diffraction is a property of lenses, not sensors or film. The size of blurred disk (CoC) is what determines how much diffraction effect will disturb details, much like for DoF calculations.

So, if one prints a 36MP file to same size as a 12MP file, diffraction effect is same. If one prints larger, using the higher resolution of sensor, it'll show more.
OnExposure member

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