SkyMaster 20x80 Binocular

Magnification 20x Objective Lens Diameter 80mm (3.15") Angular Field of View 3.7° Linear Field of View (@1000 yds) / @1000 m) 195 ft (65 m) Exit Pupil 4mm (.15") Eye Relief 18mm (.71") Close Focus 108 ft (33 m) Interpupillary Distance (max) 72mm (2.83") Interpupillary Distance (min) 56mm (2.20") Diopter Adjustment Range -4 to +8 Twilight Factor 40 Relative Brightness 16 Lens Coatings Multi-Coated Prism Glass (Type) BaK-4 Prism Coatings N/A Weight 75 oz (2126 g) Environmental Protection Water Resistant Nitrogen Filled No Tripod Adaptable Yes Carrying Case Nylon Dimensions 228mm x 120mm x 325mm (9.0" x 4.7" x 12.8") Included Accessories Objective lens caps| Rainguard| Carrying case| Neck strap| Lens cloth| Instruction manual