Thread: collimation free dob?
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Old 02-10-2005, 01:23 PM
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fringe_dweller
on the highway to Hell

fringe_dweller is offline 		 
Join Date: May 2005
Location: Adelaide
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my two dobs are virtually collimation free - maybe needs doing once evry two years, if that. but they are long focal lengths f7 10" f6.3 8" in steel tubes - makes a big diff
Kearn
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