Experience on using Peltier, single 12V, variable resistor.
55s exposure, 0 gain, since I've to close the aperture stop to nearly zero, all the dust come out.
Which one is cooled? I think the result is too close to be anything useful. The Peltier is actually working, it's not very cold, but at least the camera didn't get warm and it feels cold when touched. The uncooled shot is taken maybe too early when the camera is first connected, the cooled shot is taken after the Peltier was on for 8 minutes, enough to take the camera back to below ambient a few degrees.