Originally posted by slipchuck I am trying to figure out why there is such a wide range in the review as far as noise with the k10 (not banding just noise)
some claim very low noise right up to ISO 1600 and I just read not long ago that at ISO 800 noise becomes intrusive.
Could it be because people are different and have different tolerance for noise?
Like with the notion of "Acceptable Sharpness" there's no such a thing as "absolute" noise, only "acceptable" which's extremely subjective and depends upon many factors. Something that looks horrible at 100% crop actually prints smooth at 5x6" and totally dandy as A3 in B/W and barely visible as a whole image displayed on a web as 800x600. Noise isn't a constant measure. It's extremely dependent upon the particular scene, lighting, exposure, WB, color dominance (e.g. blue channel is usually noisier), etc.
Then
noise character (e.g. density vs big blotches, luma vs chroma) plays a huge role in aesthetic impact and whether it obscures detail or not. You can have a low noise but "plastic" looking picture where most of the texture details were eaten by over eager NR.
And last but not least people usually post on forums to complain and not to sing praises.