Yeah, losing about three stops or more of dynamic range by the time I step up from ISO 64 to ISO 800. There's less detail in the photos too. This is why I prefer to shoot at low ISO settings.Hmmm ...What happens to dynamic range when you step up to ISO 200? Then ISO 400? Then finally to ISO 800?As motion blur is the biggest problem for image quality, I think ISO 800 image quality is the most important thing, especially if you want to avoid moving parts in the camera as much as possible.Low-ISO image quality is the most important thing, and Sigma's cameras with Foveon sensors offer that. That is the main reason I got an SD 14, then an SD 1 Merrill, ". . . and that is the reason I got one."Well certainly a full-size 20mp 3-layer camera would hold more appeal than the Quattro. That said, my feeling is that if they can't do (really do) high iso and not just ISO400, they won't get great sales. There is are good reasons why the FP line is so successful and if it didn't have high ISO (12500) it wouldn't have the numbers it has now. That is the main reason I got an FP and that is the reason I got one.
Don
Your Nikon, according to our Bill Claff:I shoot almost exclusively at ISO 100 (or ISO 64 when using my Nikon). I don't get a lot of motion blur. Hmmm . . .
Looks like it drops quite bit, Scott.
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what you got is not what you saw ...
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Scott Barton Kennelly
Big Print Photos - Photography by Scott Barton Kennelly
Landscape and nature photography, photographic prints by Scott Barton Kennelly, an Australian photographer living in south Florida.
www.bigprintphotos.com
