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Geoff, well yes it does for quite a while after I take them outside. I stayed out till 3am last night and the Dob was just beginning to sharpen up at around 2:30. Until then the "seeing" through the Dob was lousy. The back of the mirror was still not very cool to the touch when I brought it in. I am thinking that I should fit a simplified version of Bird's cooling system, or at least a fan.
But the ED80 is instant gratification; plonk and observe; I like that v much. I was thinking last night that maybe I'll sell it and get an ED100 once I start earning some decent $. Speaking of which, I have a job interview in a couple of hours...
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