Features K9 Prisms and Coated Optics - Image enhancing optical coatings provide bright, colour-rich views 26.2' Close Focus - Detailed up close observation of subject in close proximity Adjustable Rubber Eyecups Wide field of view - Take in the whole scene Ergonomic body - Finger ridges for extra non-slip comfort and ease of use Spec: Magnification: 16x Objective Lens Diameter: 32mm (1.26") Angular Field of View: 3.5° Linear Field of View (@1000yds / @1000m): 185 ft (62m) Exit Pupil: 2mm (.08") Eye Relief: 10mm (.39") Close Focus: 26 ft (8 m) Interpupillary Distance (max): 72mm (2.83") Interpupillary Distance (min): 58mm (2.28") Diopter Adjustment Range: 2 Twilight Factor: 22.63 Relative Brightness: 4 Lens Coatings: Coated Prism Glass (Type): K9 Prism Coating: N/A Weight: 13 oz (369g) Environmental Protection: Water Resistant Dimensions: 91mm x 56mm x 142mm (3.6" x 2.2" x 5.6")