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Old 13-06-2009, 07:47 PM
tornado33
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tornado33 is offline
 
Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 3,931
Marvellous what a difference temperature makes

Was looking at some past images Ive done, and decided to check darks I did in summer and compare to ones I did 2 nights back when it was very chilly.
Both are full res crops from same part of image.
One was at an ambient temp or around 20 degrees, the other at 8 degrees. Look at the difference in noise. Bert has the right idia, making a fridge to go round the camera. DSLR's dont need to be cooled to 30 below. If this dark is so dark at 8 degrees, at around zero thermal noise would be almost non existant.
Scott
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