Thread: Filters and scope size
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  #3  
Old 21-03-2007, 09:22 PM
Peter Bobroff
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Peter Bobroff is offline 		 
Join Date: Mar 2007
Location: Canberra
Posts: 15
I haven't found the HB filter nearly so useful. I use it only on the Horsehead and have found that a 14" to be the minimum. However friends of mine swear they can see it with smaller scopes.
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