Alpen Chisos Binoculars 12X50 ED Green 12x magnification for detailed long-range viewing;50mm objective lenses for superior light transmission;ED glass for enhanced color accuracy and reduced chromatic aberration;Waterproof and nitrogen-purged for fog-proof performance;BK4 roof prism system with PXA phase coating for sharp contrast;Fully multi-coated (FMC) optics for maximum brightness and clarity;Field of view: 263 feet at 1000 yards;Apparent field of view: 8.2 degrees;Close focus: 8.2 feet for detailed nearby observations;16mm eye relief for comfortable extended use;4.2mm exit pupil for optimal brightness;Twist-up eyecups for customizable eye positioning;Durable magnesium housing with textured grip;Lightweight design at 907g;Lifetime warranty with registrationtable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 4000 Product Group Code: 4000A Inactive: No Prop65 Applies: No Prop65 Cancer Harm: No