Steiner T1042 Tactical Binoculars The Steiner Optics reputation for combat-worthy performance, toughness and dependability was earned the hard way: in battlefield and tac ops situations around the world. These tactical binoculars reflect hard-won experience with features, ergonomics and visual excellence that are unsurpassed anywhere, and rugged reliability that can survive anything. Whether you need a pocket-sized compact for your gear bag or a full-sized model to spot for your shooter, the Tactical Series will serve you well. Details 10x Magnification 42mm Objective Lens Diameter 315 ft at 1000 yds of Field View Fast-Close Focus(TM) Focusing System High Definition Tactical Optic Optics System 6 ft of Close Focus 4.2 mm of Exit Pupil 16mm of Eye Relief 56 - 74 mm of IP Distance +/- 4 dpt of Diopter Range Style Number: 2005