Celestron Trailseeker ED 8x42mm Roof Prism Binoculars Black. Celestron built these Binoculars with Extra-low Dispersion (ED) glass that delivers brighter and sharper images than binos without ED lenses. They eliminate chromatic aberration for enhanced color fidelity. These Celestron Trailseeker ED 8x42mm Roof Prism Binoculars are also tripod adaptable so that you can mount them on your tripod for a comfortable hands-free viewing session. Pick up these Celestron Trailseeker ED 8x42 Waterproof Binoculars to get a brilliant sight picture for your outdoor adventures. Specifications for Celestron Trailseeker ED 8x42mm Roof Prism Binoculars: Manufacturer: Celestron Color: Black Magnification: 8 x Objective Lens Diameter: 42 mm Prism System: Roof Prism Material: BAK4 Eye Relief: 17.2 mm Exit Pupil: 5.2 mm Field of View Linear: 426 ft at 1000 yds Field of View Angle: 8.1 degrees Optical Coating: Fully Multi-Coated Binoculars Focus System: Center Focus Twilight Factor: 17.8 Interpupillary Distance: 56 - 74 mm Close Focus: 6.5 ft Diopter Adjustment Range: -3 - 3 dpt Weather Resistance: Yes Water Resistance Level: Waterproof Length: 139.7 mm Weight: 23.5 oz Package Type: Box Included Accessories: Carrying Harness Instruction Manual Objective Lens & Eyepiece Caps Lens Cloth Neck Strap Magnification Type: Fixed Width: 5 in Height: 2 in Tripod Adaptable: Yes Fogproof: Yes Brightness Index: 27.04 Case: Yes Nitrogen Filled: Yes Armoring: Rubber Armored Features of Celestron Trailseeker ED 8x42 Binoculars: ED objective lenses provide superior images virtually free of chromatic aberration with accurate color reproduction increased resolution and contrast Fully multi-coated optics for maximum light transmission through the optical path Phase and dielectric coated BaK-4 prisms for vivid true-to-life colors Tripod adaptable Package Contents: Celestron Trailseeker ED 8x42 Binoculars Included Accessories: Objective Lens & Eyepiece Caps Neck Strap Lens Cloth Instruction Manual Celestron 71405: Trailseeker ED 8x42mm Roof Prism Binoculars Black