Thread: Vixen Porta mount and R130 newtonian
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  #15  
Old 12-06-2006, 11:17 PM
stringscope (Ian)
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stringscope is offline 		 
Join Date: Mar 2005
Location: Canberra
Posts: 419
Hey Geoff, assuming the secondary is large enough, I calculate the 31 Nagler should give you just under 4 degrees TFoV. Wow, not bad
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