Thread: wot barlow to buy?????
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Old 17-07-2008, 10:49 AM
Dennis G
Dennis G

Dennis G is offline 		 
Join Date: Jan 2007
Location: Albany West Aust
Posts: 213
The F number. The primary mirror is F5 and you use a x2 Barlow with a Toucam which I'm told is x6, what is the final F number?
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