Thread: best collimating tool for a newtonian.
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Old 04-12-2010, 10:12 PM
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asimov (John)
Planet photographer

asimov is offline 		 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
I'm old school, so I'll stick with my 2" sight tube (costing about 2 bucks) for the secondary, & the star test for the primary.
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