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LO res. sd1m files very sharp

Started Feb 23, 2022 | Discussions thread
xpatUSA
xpatUSA Forum Pro • Posts: 23,017
Re: LO res. [SD1 Merrill] files very sharp
1

quma wrote:

xpatUSA wrote:

quma wrote:

I see absolutely no advantage in using low res with the SD1 unless you are in no man's land, your card is running full and you need to get those shots.
Low res doesn't even perform better at high ISO settings, rather the opposite.

Low res gives less noise. Therefore, it's ISO "performance" is better.

In theory, but not with the SD1 and Sigma Photo Pro.

Two shots, same settings, the high res photo has been downscaled to match the low res.
Both are unusable as color photos, but the low res is worse, even as a black and white image.

HIGH RES, downscaled to LOW RES, all settings zero, noise reduction off

LOW RES, all settings zero, noise reduction off

I was talking about temporal noise, not Foveon green/magenta blotching.

In any case, for temporal noise comparison it is not valid to re-sample one image to match another.

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