Thread: Anyone need to center-spot or clean their primary mirror?
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Old 09-06-2005, 08:00 PM
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asimov (John)
Planet photographer

asimov is offline 		 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
Hey Geoff.... What kind of centre spot is that? I know it's one of those hole reinforcement rings....but can I see some sort of pattern or something on the ring itself?
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