Quote:
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Originally Posted by Hotkey
My 10 inch Dob is proving very difficult to collimate. I spend hours adjusting then when I take it out at night I find I can just split easy doubles. I have read heaps of articles but must be doing something wrong still.
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Have you
checked your scope for pinched optics ?
Is the scope properly cooled when you observe? This time of year it should be outside for an hour at least before its anything like cooled close to ambient assuming you dont have a fan.