Technical Specifications : General Specifications of Comet 10X50 DPSI Wide Angle Binoculars: Model: Comet 10X50 DPSI Magnification: 10X Objective diameter: 50MM Type of prism: Porro Prism Coating: Yes Lens coated: BMC Focus System:Cent. Exit Pupil Diameter(mm): 5mm Exit Pupil Distance(mm): 11.8mm Angle of View: 6.5° Field of view: 114m/1000m Min. Focal Length(m): 7m. (22.9 ft.) to infinite Diopter system: Right Eyepiece Diopter Comp.:±3 Interputer pupillary Distance: 56mm~72mm Relative Brightness: 25 Weather proof: Yes Eyecups system: Fix Pouch: YES Wide Strap: YES Cleaning Cloth: YES Silica Gel: YES Tripod Adaptable: YES Unit Dimension: 193x184x61mm Weight(g): 970 g