20x50 Roof Prism Binoculars for Adults - Professional HD Binoculars for Birds Watching Hunting Concerts with Clear Weak Light Vision - BAK4 Prism FMC Lens with Carrying Bag and Smartphone Adapter

Advantages Ideal Power The 20X power magnification and 367ft/1000yds wide field of view is perfect for outdoor and indoor activities BAK4 Prism And Multi layer Coating Lens Large ultra Phase BAK4 Prism and Fully Multi-coated lens guarantee the key elements of an HD vision, Experience Unbeatable Resolution, Contrast & Color Fidelity that create sharp, clear, HD images Smartphone Adapter Attached with binoculars smartphone adapter mount makes it easy to position a point and shoot for high magnification photography. Flexible Foldable Eyecups for Comfortable Use Flexible Foldable Eyecups can be twisted up and down for different people,  Waterproof And Shock Resistance Nitrogen filled design, well sealing property and durable rubber armor for waterproof, fogproof binocular. Durable and Solid Construction With durable aluminum framework and rubber armor make it not only delicate but also usable to withstand the toughest weather conditions. Low Light Night Vision 50mm large objective lens, Full HD green film with excellent 99.6% light transmittance allows more light pass through the lens and produce high brightness.  Specification: Magnification power: 20x Objective diameter: 50mm Eyepiece Diameter: 28mm Eye Relief: 14.6mm View Angle: 7.8° Field of View: 367 FT / 1000YDS Prism: Roof prism / BAK4 Product dimension: 7.48x 2.56x 7.09 inch Product weight: 2.12lb / 978g