This is a single frame taken with the Canon 5DH in the fridge at -10C degrees and the 300mm F2.8L. The exposure was one minute, ICNR on. I have made the background fully visible by increasing the brightness.
The frame was corrected for flats and digitally developed in ImagesPlus. Final levels in PS no curves.
As you can see there is almost no obvious noise. ICNR leaves many small dark 'holes' at 20C.
Large full image 2.1MB
http://members.optusnet.com.au/~avandonk1/1600frame.jpg
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