Opticron Discovery WP PC 10x50mm Roof Prism Binocular Non-Slip Rubber Covering Black. Fitted with long eyerelief for comfortable viewing these Binoculars created by the optical experts at Opticron are fitted with twist-type eyecups and offer low IPDs for easy use by all users including eyeglass wearers and children. The PC phase corrected prisms with multi-coated optics ensure the most light transmission available ensuring a beautiful view every time you use the Opticron Discovery WP PC 10x50mm Roof Prism Lightweight Binocular. The nitrogen filled magnesium body is lightweight and comfortable to maneuver in all weather conditions putting versatility and freedom in your pocket or bag with the Opticron Discovery WP PC 10x50mm Roof Prism Weatherproof Binocular. Specifications for Opticron Discovery WP PC 10x50mm Roof Prism Binocular: Manufacturer: Opticron Color: Black Magnification: 10 x Objective Lens Diameter: 50 mm Prism System: Roof Prism Material: BAK4 Image Stabilizer: No Eye Relief: 22 mm Exit Pupil: 5 mm Field of View Linear: 345 ft at 1000 yds Field of View Angle: 6.6 degrees Optical Coating: Fully Multi-Coated Binoculars Focus System: Center Focus Twilight Factor: 22.4 Interpupillary Distance: 2.3 - 3 in Close Focus: 4.9 ft Weather Resistance: Yes Water Resistance Level: Waterproof Length: 5.7 in Weight: 28.68 oz Finish: Non-Slip Rubber Covering Fabric/Material: Aluminum Alloy Polycarbonate Magnesium Condition: New Package Type: Box Included Accessories: Soft Case with Rainguard Wide Neck Strap Objective Lens Caps Magnification Type: Fixed Features of Opticron Discovery WP PC 10x50mm Roof Prism Waterproof Binocular: Limited Lifetime Warranty Nitrogen waterproof construction Lightweight magnesium body Fully multi-coated coated optics with PC phase corrected prisms Long eyerelief for spectacle wearers with twist type eyecups Package Contents: Opticron Discovery WP PC 10x50mm Binocular Opticron 30467: Discovery WP PC 10x50mm Roof Prism BinocularBlack