Quote:
Originally Posted by RickS
If you compare a 1 sec exposure at 100 ISO and a 1 sec exposure at 800 ISO then the second will have more noise. But what about comparing an 8 sec exposure at 100 ISO with a 1 sec exposure at 800 ISO. Both exposures capture the same quantity of photons and Luigi is asserting that you will get less noise in the second case. This seems plausible to me since thermal noise builds up over time.
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Ahh, that makes sense now. Thanks.