Clinically clean lenses are destroying what makes cameras special

Re:Clinically clean lenses are destroying what makes cameras... by dannyw on Saturday July 09, 2022 @06:25AM (#32033638)

Can the BMD really shoot 12K? At 12K you're limited to significantly compressed formats. With so much of the data missing, resolving power is noticeably degraded when you look at a crop.

I've heard that the tiny photosites also contribute to the sharpness issue, but I won't pretend to understand why.

A 4K crop of a 12K BRAW file looks 1080p-ish.

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Re:Clinically clean lenses are destroying what makes cameras... by zrav on Sunday July 10, 2022 @03:47AM (#32042674)

There are many possible reasons for images not looking so sharp. From the top of my head:

  - When not stopped down, most lenses are not that sharp, especially older ones.
  - Most sensors employ an anti-aliasing (lowpass) filter that blurs the image.
  - The smaller the photosites, the worse the signal-to-noise ratio.
  - Bayer interpolation.
  - Less then optimal post-processing, like aggressive denoising and sharpening with too large of a radius
  - Compression artifacts and color sub-sampling.
  - Analog outputs are usually bandwidth-limited (lowpass filtered) for EMI compliance reasons. Not an issue with an all-digital workflow of course.

[ Parent | on HN ]