Banner Sentry spotting scopes feature fully coated prisms and lenses for increased light transmission and image brightness, variable power eyepieces, non-reflective armoring and built-in peep sight (straight-thru models only) for ultra fast precision viewing. -Magnification: 18-36x -Objective Lens: 50mm -Field of View @1000 yards: 115ft. @16x, 75ft. @36x -Exit Pupil: 2.8mm @18x, 1.4mm @36x -Weight: 31 oz. -Length: 14.7"