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Fuji X-H2 resolution?

Started 1 month ago | Discussions thread
JNR
JNR Veteran Member • Posts: 4,652
Re: Thanks for the replies
1

Erik Baumgartner wrote:

There are lots of bad examples, and good examples with bad processing out there. A 40MP sensor is going to be more reliant on good lenses, and shooting/post processing technique for an optimal result, but will never be softer than a 26MP sensor with the same lenses. A lot of people are processing with the same sharpening/NR settings as with their old sensors which can significantly limit the rendering fine detail. While diffraction can be resolution limiting factor, it will never produce a worse result than with 26MP, it will only limit how much better it can be.

Exactly correct.

Another way to understand diffraction is if you had a perfectly sharp lens (with no aberrations) and an infinitely dense sensor then the only limiting factor would be diffraction which would only further decrease sharpness upon stopping down (the perfectly round aperture). In other words, diffraction exists no matter the aperture (because the aperture is the only source of the diffraction in an otherwise perfect lens).

That's why a really good relatively fast crop sensor prime lens can peak overall at f/4 or even wider and show diffraction sharpness loss already by f/5.6. A more typical crop lens often peaks at f/5.6 simply because it just isn't quite as sharp at f/4.

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JNR

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