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Hi just to muddy the waters a little bit. :-)
What Hagar said about being able to regulate the cooler is definately a Big plus. Starting off with minimal cooling and increasing it, will avoid lots of icing issues.
You can kind of do this with the QHY8 too. I don't know the price diff between the two cameras, but I already had the QHY8. It comes with a controller called a DC101. For about 100 bux extra you can buy a DC102 controller from Gamma. This is the one that can regulate the TEC on the Pro versions. It is also plug compatible with the QHY8, HOWEVER with the QHY8 there is no thermistat in the camera to read back the temperature. So by adding the DC102 you can use the controller to vary how much power goes to the TEC. So you can use the setting in the DC102 to set the cooling to a minimum initially then ramp it up later. You cant set an exact temp, you are more just setting power to tec from 0 to 100%
This is still not as good as the regulated cooling with the pro where you can set a specific temp. That would still be preferable, but it may be something to consider if its the difference between the two is a real stopper.
Regards
Bill D
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