Celestron Nature DX ED 8x42mm Roof Prism Binoculars

Celestrons award-winning Nature DX binocular gets a major upgrade with the addition of ED objective lenses. Nature DX EDs optical performance rivals that of more expensive binoculars, at a price to fit your budget. This versatile, all-around binocular is a great choice for the trail, the stadium, the arena, or just about anywhere you want a close-up view of the action without sacrificing brightness or detail. Its an especially great companion for nature observation and bird watching, with ED glass that helps you spot the subtlest field markings and a close focus of just 6.5 feet. ED Objective Lenses Extra-Low Dispersion (ED) glass virtually eliminates chromatic aberration, also known as color fringing, a visual defect common in binoculars. Nature DX ED delivers razor sharp images, even at the edges of the field of view. ED glass is also known for producing images with outstanding, true-to-life color. Not all ED glass is created equal. Celestrons high quality ED glass delivers visibly brighter, sharper images compared to non-ED binoculars. The difference is especially apparent in low light conditions, such as at dawn or dusk. Coatings and Prisms Nature DX ED features fully multi-coated optics. A binocular can be considered fully multi-coated when all air-to-glass surfaces are coated with multiple layers of anti-reflectivity coatings so that the maximum amount of light passes through the glass to the eye. The prisms inside Nature DX ED are made of high quality BaK-4 glass with phase coatings applied so that more light is reflected off their internal faces and passes through to the eye. Taken together, the fully multi-coated lenses and BaK-4 prisms maximize light transmission for the remarkably bright, highly detailed images. The ED objective lenses further enhance these features, especially in low light conditions. The Body A durable rubber armored, polycarbonate housing protects your Nature DX ED binoculars from damage without weighing you down. Viewing through Nature DX ED is comfortable for both eyeglass wearers and non-eyeglass wearers, thanks to the durable twist-up eyecups. Twist through multiple click stops to find the position that works best for you. Whats more, the binocular is fully waterproof and filled with dry nitrogen gas to prevent internal fogging of lenses. Nature DX ED can stand up to even the toughest outdoor conditions. Perfect for a Variety of Uses Nature DX ED 8×42 features a close focus of just 6.5 feet, making it perfect for viewing birds, butterflies, plants, or other nearby subjects. For distance viewing, the 8×42 model offers a wide field of view so you can easily follow subjects as they move with less need to move the binoculars. Ways to Observe Carry your Nature ED on the comfortable included strap. Its also tripod-adaptable, so you can mount it on any standard photographic tripod for extended viewing or digiscoping (photography through the eyepiece). The tripod adapter is sold separately. The binocular also includes a protective padded nylon case for storage and transport. Specifications for Celestron Nature DX ED 8x42mm Roof Prism Binoculars: Manufacturer: Celestron Color: Black Magnification: 8 x Objective Lens Diameter: 42 mm Prism System: Roof Prism Material: BAK-4 Eye Relief: 17.8 mm Exit Pupil: 5.25 mm Field of View, Linear: 393 ft at 1000 yds Field of View, Angle: 7.5 degrees Optical Coating: Fully Multi-Coated Binoculars Focus System: Center Focus Interpupillary Distance: 56 – 74 mm Close Focus: 6.5 ft Diopter Adjustment Range: -3 – 3 dpt Water Resistance Level: Waterproof Length: 5.6 in Weight: 705 g Magnification Type: Fixed Features of Celestron Nature DX ED 8x42mm Binoculars Magnification – 8x Objective Lens Diameter – 42mm (1.65″) Angular Field of View – 7.5 Linear Field of View (@1000 yds) / @1000 m) – 393 ft (129 m) Exit Pupil – 5.25mm (.21″) Eye Relief – 17.8mm (.70″) Close Focus – 6.5 ft (2 m) Interpupillary Distance (max) – 74mm (2.91″) Interpupillary Distance (min) – 56mm (2.2″) Diopter Adjustment Range: 3 Twilight Factor – 18.33 Relative Brightness – 27.56 Lens Coatings – Fully Multi-Coated Prism Glass (Type) – Bak-4 Prism Coatings – Phase Coated Weight – 24.9 oz (705 g) Environmental Protection – Waterproof Nitrogen Filled – Yes Tripod Adaptable – Yes Carrying Case – Padded nylon canvas Dimensions – 142mm x 128mm x 56mm (5.6″ x 5″ x 2.2″) Package Contents: Celestron Nature DX ED 8x42mm Binoculars Neck strap| Objective lens caps| Rainguard| Carrying case| Lens cloth| Instruction manual