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helij
78 days ago
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Wallace the 6 inch f/2.8 telescope, building it, a...
Barlow!?
chantepierre
78 days ago
[–]
Well, I could, but checking collimation at 1-2D magnification for an instrument used at 0.16D provides no observable advantage once star collimation was done. My rule of thumb is to star collimate at a higher power than actually used to observe
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