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kmaysob · February 19, 2012, 01:15 AM

3x9-40

3=the minimum magnification
9= the maximum magnification
40 is the objective diameter ( end closest to the muzzle) \

as already stated, generally, the bigger the objective lens , the more light it gathers

February 19, 2012, 01:15 AM	#5
kmaysob Senior Member Join Date: December 9, 2011 Posts: 188	3x9-40 3=the minimum magnification 9= the maximum magnification 40 is the objective diameter ( end closest to the muzzle) \ as already stated, generally, the bigger the objective lens , the more light it gathers