Ideal resolution for a full frame Foveon sensor?

Started Mar 4, 2012 | Discussions thread
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Ideal resolution for a full frame Foveon sensor?
Mar 4, 2012

I just did a calculation to work out what the resolution of a full frame Foveon sensor would have, if it has the same number of photosites/mm as the SD1 sensor has...It works out to be about 34.6mp x3...Or as Sigma would say, 103.8mp!

The same calculation but with the same photosites/mm as the SD15 returns a much more modest figure of 14mp x3...Or as Sigma would say, 42mp...Less than the resolution of the SD1 with a 1.5x crop sensor!

Clearly the photosite size of a full frame Foveon sensor could be made much larger and hence less noisier, with a much higher dynamic range and much better high ISO capability, whilst still allowing a sizeable increase in resolution over the SD1.

Personally, I'd be more than happy with a 20mp x3 full frame Foveon sensor because of the fantastic image quality it would give compared to the SD1.
For IQ and filesize sake, I think Sigma should not go above 25mp x3.

So what resolution would like to see Sigma use for a future full frame Foveon sensor?

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