Ok i bit the bullet today and completely modded the 40D.
I had a piece of aluminium sticking out of the camera for some time that was connected and isolated onto the cmos.
Today i fitted an peltier onto it, testing it as i type.
It has gone to -11.5C, and before i started it was 20.5C, that is a temp difference of 32C
Nice and steady on -11.5C.
Looks like i better make it regulated so i can leave it at about 0C and have the temp constant during summer.
I will not go into how to open the camera etc and how to do the mod itself
First photo is the modded 40D.
Second photo is the temp (yes that is a - infront of it
Third photo is 10min dark at 21C.
Fourth phot is same as above but at -11.5C
Dont do this at home without an good dose of booze
