AS it is now warm at night I fired up the peltier fridge I rigged up to cool my camera see here
http://www.iceinspace.com.au/forum/s...ad.php?t=27081
Below are a few quick results the first two are OK you all know, the third is the Lamda Neb in Carina and the fourth is IC 443 with some friends IC 444 and at top right a bit of NGC 2174. By morning the ambient temperature was 13C and the fridge was down to -3 deg C. The last two images were six shots for each at four minutes at an ISO of 1600 at f/2.8. For an ISO of 1600 the noise is quite low.
The FOV in all images is about 6.8x4.6 degrees.
Bert