Thread: First light for new 20" compact dob
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Old 31-10-2009, 08:30 PM
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circumpolar (Matt)
and around we go

circumpolar is offline 		 
Join Date: Jan 2006
Location: Quakers Hill, NSW
Posts: 426
Q: Is F/3.7 the limit for using a paracorr as part of the design concept?, or is this just the best combo for the focal length you wanted?
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