Thread: Do you need a filter to see Nebulas?
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  #22  
Old 07-10-2005, 06:21 PM
Eardrum73
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Eardrum73 is offline 		 
Join Date: Sep 2005
Location: NSW
Posts: 70
ohhhh so thats the focal length...

lol i alawys thought that number was the eyepeice apeture or something....

Me = noober
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