Magnification : 16x Objective diameter : 50 mm Angular field of view : 4.2 (Real) 60.8 (Apparent) Field of view : 73 m @ 1000 m Exit pupil : 3.1 mm Relative brightness : 9.6 Eye relief : 12.6 mm Close focusing distance : 9.0 m Interpupillary distance adjustment : 56-72 mm Weight : 925 g Length : 179 mm Width : 197 mm Type : Porro