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Message: <blockquote data-quote="pforsell" data-source="post: 610754" data-attributes="member: 7240">A lot depends on lighting too. In tungsten light the blue channel will be so weak, that your images drown in noise much earlier. In sodium lights out in the street in the night the situation tends to get even worse. So there is no blanket statement that fits all situations.And remember that it isn't the ISO setting in the camera that is the source of the noise. The noise comes from lack of light. It is the opposite, actually. If you keep exposure constant and keep on increasing ISO, the amount of noise will go down. This is easy to test in 2 minutes. Why else would the manufacturers put the ISO knob in there in the first place?</blockquote>