Quote:
Originally Posted by Atmos
From reading about them, one common thread is to install Tempest Fans to significantly help with cooling.
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Well yeah, in north america or europe i can see that, especially where you are bringing a scope outside to plonk it on your portable mount. But my situation might not require them. In an observatory you are pretty much always at ambient, and its not a massive piece of glass anyway, and the tube is vented. I will try it without them. Those Tempest units, like many astro accessories, are expensive little fans, i have a couple of small (50 cent sized) fans that i can stick on it if i want to try them.