Firefield Emissary 16x32 binoculars offer superior long range vision through the use of a 32mm multi-coated objective lens. Lightweight, with powerful 16x magnification, the Emissary binocular’s K9 roof prism produces great optical quality that is both rugged and durable. Allowing for a 108 ft. field of view at 1,000 yards, the Firefield Emissary 16x32’s rubber-armored body makes it weatherproof with an IP55 water-resistant rating. Features Rubber Armored IP55 Water Resistant Multi-coated optics 32mm Objective Lens Lightweight Internal Focusing Lens K9 Roof Prism 16x Magnification Specifications Body Material ABS Plastic/rubber Close Focus Distance 18.4/5.5 Diopter Range 4 to 4 Diopter System location eyepiece Exit Pupil Diameter 2mm Eye relief .39 Eyecup system Fold down Field of View ft/1,000yds 108 Field of View m/1,000m 36 Field of View, degree 3.6 Focus System Cent. / Ind. / Fix Central Focusing Lens Eye. / Obj. / Int. Internal Fog Proof No Height in/mm 1.6/40 Interpupillary Distance 2.16 2.75 IP Rating waterproof IP55-water resistant Length 5.4 Lens Coating Multi-coated Magnification 16x Objective Lens Diameter 32mm Operating Temp,?F/?C 0 to 120 / 17 to 49 Prism Coating, yes/no No Relative Brightness 4 Resolution 13.5 Twilight Index 22.6 Type of Prism type K9 roof Waterproof/Nitrogen-filled No Weight oz 11.9 Width 4.4 SOLD QUANTITY 1