Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale 
<stevekale@b...> wrote:
> Yes I guess this is a bit off this topic but there is an interesting
> discussion here from which I conclude we want greater bit depth and 
lower
> noise - the latter being highly correlated to the size of the pixel.


Cooling the chip can also reduce the noise. TV camera manufacturers 
found this very quickly when they made the move from tubes to chips. 
The prefered method is with active solid state cooling (peltier) 
devices glued to the chips and prism. I'm not sure if any 
manufacturer is doing this for still cameras, but it might be very 
beneficial for long exposures.