> > > > [EMAIL PROTECTED] wrote: > > I'd disagree with the premise here. Sticking a blue filter on the > > front of your lens to balance tungsten light to a daylight sensor > > isn't going to do anything to improve the blue channel noise. In > > fact all it will do is reduce the amount of light falling on the > > red and green sensors, thus lowering the signal-to-noise ratio > > in the red and green channels. > > > That only is true if all the other factors in the exposure remain the > same, but if you change the exposure time to compensate, his premise > should be true.
Don't forget that with room-temperature digital sensors the amount of thermal noise increases with exposure time.
