Thread: How do I collimate my 152mm (Achromat) refractor with the aid of a laser
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Old 20-03-2025, 10:59 AM
Leo.G (Leo)
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Leo.G is offline 		 
Join Date: Nov 2016
Location: Lithgow, NSW, Australia
Posts: 1,599
Thanks Frank, I have one but I don't know how it helps/how to use it with a refractor.
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