Thread: AS&T collimation query.
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Old 08-12-2005, 10:57 AM
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rmcpb (Rob)
Compulsive Tinkerer

rmcpb is offline 		 
Join Date: Jan 2005
Location: Blue Mountains, NSW
Posts: 1,766
Centre spotting with ring binders is simply SOP with reflectors. No harm done as the ring will be in the shadow of the secondary mirror.

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