Thread: Just starting
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Old 08-07-2014, 08:30 PM
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omegacrux (David)
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omegacrux is offline 		 
Join Date: Jan 2012
Location: Ulverstone Tas
Posts: 733
D70mm = diameter of the lens
Fl 700mm = length of the scope
f= 700 divided by 70 = f9
Take your scope out tomorrow and sight a target in the distance and line up the finder scope
Much easier in daylight

And welcome David
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