Opticron Marine-3 7x50mm BIF.GA Marine Binocular Non-Slip Rubber Covering Black. GA Marine Binocular makes your marine mission easier than ever. Perfect for use under constant motion these Binoculars designed by the boating experts at Opticron offer stable viewing whether or not you are wearing glasses. The lengthy 18mm eye relief ensures incredible comfort when you inspect the seas even in low light and the large depth of field puts strong imaging capabilities in your hands with the Opticron Marine-3 7x50mm BIF.GA Low Light Binocular. Made from single die-cast aluminum bodies and durable thick rubber armoring the Opticron Marine-3 7x50mm BIF.GA Marine Aluminum Binocular is weatherproof and rugged enough to maintain its integrity even in the salty sea air. Specifications for Opticron Marine-3 7x50mm BIF.GA Marine Porro Prism Binocular: Manufacturer: Opticron Color: Black Magnification: 7 x Objective Lens Diameter: 50 mm Prism System: Porro Prism Material: BAK4 Image Stabilizer: No Eye Relief: 18 mm Exit Pupil: 7 mm Field of View Linear: 378 ft at 1000 yds Field of View Angle: 7.2 degrees Optical Coating: Fully Multi-Coated Binoculars Focus System: Individual Eyepiece Focus Twilight Factor: 18.7 Interpupillary Distance: 2.2 - 3 in Close Focus: 29.5 ft Weather Resistance: Yes Water Resistance Level: Waterproof Length: 7.4 in Weight: 2.4 lb Finish: Non-Slip Rubber Covering Fabric/Material: Aluminum Alloy Polycarbonate Package Type: Box Included Accessories: Wide Neck Strap Objective Lens Caps Soft Case with Rainguard Magnification Type: Fixed Features of Opticron Marine-3 7x50mm BIF.GA Marine Waterproof Binocular: Limited Lifetime Warranty Individual eyepiece focus binoculars Ideal for enthusiasts and professional users Enlarged porro prisms Anti-reflective multicoatings maximize field of view Cross-field resolution Low light performance Long eyerelief Large depth of field Stable comfortable viewing under constant motion with or without glasses Fully nitrogen gas filled Waterproof Specially mounted prism assemblies protect from knocks and bumps Strong single die-cast aluminum bodies Durable thick rubber armoring Package Contents: Opticron Marine-3 7x50mm BIF.GA Marine Binocular Opticron 30056: Marine-3 7x50mm BIF.GA Marine BinocularBlack