Alpen Magnaview Waterproof 8x42 Binocular BK7BAK4 Multicoated Dark Green Medium Roof. Durable yet comfortable with quality optics ALPEN MagnaView Binoculars offer more features than other Binoculars in their price class. MagnaView Binoculars offer enhanced value at the mid and lower price range. Specifications for Alpen Magnaview 8x42mm Waterproof Roof Prism Binocular: Manufacturer: Alpen Color: Dark Green Magnification: 8 x Objective Lens Diameter: 42 mm Prism System: Roof Prism Material: BK-7 BAK4 Eye Relief: 15.5 mm Exit Pupil: 4.6 mm Field of View Linear: 321 ft at 1000 yds Optical Coating: Multicoated Binoculars Focus System: Center Focus Close Focus: 19.6 ft Water Resistance Level: Waterproof Weight: 32 oz Condition: New Magnification Type: Fixed Features of Alpen Magnaview Waterproof 8x42 Binocular BK7+BaK4 glass for clear bright and crisp images Fully Multi-Coated Rubber armoring for protection and durability Twist up eye cups Package Contents: Alpen Magnaview Waterproof 8x42 Binocular Bag Alpen 260: Magnaview Waterproof 8x42 Binocular BK7BAK4 Multicoated Dark Green Medium Roof