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Glen. I have had the cold finger working on my 1000D for several years and have never built a cooler box.
I am yet to complete the modification of the 450D pending completion of the v3 electronics package - in a nutshell I have been perfecting the art of cold finger DSLR cooling for some time.
As mentioned, I have found a way to run condensation free, even with heavy dew.
The electronics package is a major improvement on the previous version but I am not using a humidity sensor.
Note: A previous version of the electronics did use a humidity sensor. I still have the code for the humidity sensor, but choose not to implement it because it's not really much use in my part of the world.
I recommend running a dew strap on the scope and I always run the sensor defogger - except v3 of the electronics package lets you turn the dew strap and sensor defogger at will. But!!! it will not let you turn them off in conditions of low air temperature/potential dew formation. Auto protection!
If you are imaging in warm humid conditions heating can be turned on explicitly.
I am yet to complete the operating manual for the electronics. The board is populated except for two items - awaiting delivery.
I am happy to send a board your way - how are your programming skills?
Last edited by rcheshire; 02-04-2015 at 08:23 AM.
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