Quote:
Originally Posted by Terry B
My only commet would be, do you really need so much cooling?
The aim is to keep encourage the scope to reach thermal equilibrium not create a fridge. Maybe just 1 peltier would be enough anyway.
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I am in Canberra where ambient often reaches minus 5 and minus 7.
I need lots of cooling. Besides, proof is in the pudding. Look at planetary images taken from similar cooled scopes.
SCT's are somewhat different to other reflectors (Newtonians) in that they are a sealed unit because of the corrector plate, locking in the heat.
The way I am at the moment, I can't acheive stable images and my focus is all over the joint because of thermal differences within the OTA. I HAVE to try SOMETHING.....
Baz.
