Quote:
Originally Posted by Camelopardalis
Nice one Peter 
I find that if I keep my 1100D sensor down to about 12-14C it does well...no significant improvement below that IMO. |
Agreed, you run into the dreaded dew\ice problem as well as you approach zero. My best result with the 450D was 5* but my ambient was about 10* below yours. I could get down to -15* easily enough but it was a major issue to manage the icing and there appeared to be very little gain if any in noise reduction.
It also required very little power to the Peltier to maintain 5* btw.