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Originally Posted by Starkler
Even without the baffle it has to be a much better way to cool the mirror than the silly arrangement some GS scopes ship with.
A fan mounted directly to the back of the mirror cell will just bounce air off one small part of the mirror.
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I disagree Geoff, I have the 12" GSO and the volume of air passing out the top of the tube when the fan is running is very high, it clearly passes over the entire mirror and up the tube, if you have any doubt, try putting the cap on and removing the smaller aperture cap, the wind blows quite strong. Viva la GSO.
