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Should Sigma make a 30 MP per layer full-frame Foveon instead of 20 MP per layer?

Started Nov 29, 2020 | Discussions thread
Scottelly
OP Scottelly Forum Pro • Posts: 18,026
Re: Should Sigma make a 30 MP per layer full-frame Foveon instead of 20 MP per layer?

xpatUSA wrote:

For me, Scott, no. My '2K' monitor is good enough at 3.4MP.

Some numbers 4U:

Pixel size:

20MP: 6.6um. 30MP: 5.4um.

5.4um gets you about 20% more sensor noise ...

Picture lines/height, i.e. max "resolution":

20MP: 4444 lph. 30MP: 3636 lph.

Paraphrasing Don:

There is very little real world difference between 20 and 30MP. The occasions when you could actually put those pixel count differences onto paper in a way that was unambiguously visible to most viewers must be very rare indeed.

Thank you for the numbers Ted.

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Scott Barton Kennelly
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