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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
xpatUSA
xpatUSA Forum Pro • Posts: 23,016
Re: Should Sigma make a 30 MP per layer full-frame Foveon instead of 20 MP per layer?
1

D Cox wrote:

mike earussi wrote:

As much as I would love more pixels than 20mp I would not want them at the expense of overall pixel quality. Having owned all SDs from the 10 to Merrill I've noticed how the 3D look and color saturation have struggled to maintain the original feel of the SD9/10 as the pixels got smaller. I'm not privy to the actual Foveon technical details but I have a feeling that there is a limit on how small the pixels can be made before the decreasing s/n ruins the Foveon look.

Indeed - decreasing S/N = more noise = more smoothing during conversion = less "3D look".

Keeping them the same size as in the Merrill should give about 24 Mpix, if my mental arithmetic is correct.

36mm x 24mm /(5um squared) = about 35MP.

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