I heard that about the QSI having trouble cooling. Shame as they look like a neat little piece of engineering. The QHY9 mono I have is also very good for a budget camera. I'm always on -20c all year round. TEC might peek at 70% to get down there but then idles around 40% even on very hot nights. Never had any issues with cooling at all. Touch wood. With SBIG you obviously get what you pay for. Nothing new here.
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