Thread: Collmination & mirror temperature
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Old 31-12-2009, 01:19 PM
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barx1963 (Malcolm)
Bright the hawk's flight

barx1963 is offline 		 
Join Date: Nov 2008
Location: Mt Duneed Vic
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I think what he is saying is some reflecters have a built in barlow in the focuser to provide more magnification with a shorter tube. These are often not very high quality barlows and cause some problems.
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