Thanks. I have already seen that link, which provided the initial inspiration to give it a go myself. Like his design I have a fan + heatsink inside the box as well as outside, and will be using a Peltier device as a heatpump with a laptop power supply to deliver the 4+ amps at 15V. His box is smaller than mine, however I already had a box that was about the right size, so i thought i'd try that first.
I am also concerned about condensation, and I'll be doing some test runs without the camera in place first to see just how bad it is.
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