One binocular. So many views. From wide-angle scanning to powerful close-ups, Action Zoom binoculars let you adjust your view to the moment. A smooth zoom lever makes it easy to dial in the right magnification, while large 50mm objective lenses with Nikon's multilayer-coated optics deliver bright, clear views across the entire zoom range. Product Overview 10x-22x Zoom Capability 50mm Front Objective Durable Aluminum Alloy with Rubber Armor Zoom into the details. Start with a wide 10x view to scan for birds and wildlife. Once you locate your subject, zoom all the way up to 22x for an extremely close view that reveals the finest details. Multilayer coatings help Cut through glare and harsh backlighting for a high-contrast view with vibrant, lifelike colors. Large focusing knob: Smoothly dial in precise focus, even when wearing gloves. Turn-and-slide rubber eyecups: Quickly adjustable to achieve exactly the right eye relief. Long eye relief: Clear, comfortable viewing with or without eyeglasses. All-Purpose Birding, Hiking, Sports & More Additional Details: 10-22x magnification 50mm objective diameter 3.9deg Angular Field of View (Real) 37.6deg Angular field of View (Apparent) FOV at 1000m: 68m Close focus distance: 26.2 ft Weight: 33.5 oz. (950 g) Size (Length x Width) 56-72mm Prism: Porro