I'am still modding my 1100D cold finger style, though the problem is dew. I have all my gear to do it though are waiting on others doing it to see there results and counter measures against dew. So far the best solution i've being working with is ripping off a commercial camera modder and opting for a mc clear in between the sensor and lens plate. Using a hot finger back to this area or the encloser to warm and keep above dew point. If i can get this planned out right and air tight i should be able to get sub zero temps on the sensor without dew problems. At the moment though i'am still planing and searching for a suitable encloser thats light weight and offers a gasket to maintain an air tight environment.
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