Action Extreme 10x50mm Wide View Binocular by NIKON OPTICSThe Action series deliver massive panoramic views and high quality optics and fast-handling rubber bodies that are easy to grip—even with gloved hands. For the best of both worlds and the Nikon Action Zoom series gives you a wide field of view at low power and the capability to move in close for amazing detail with fingertip zoom controls. Specifications: Focusing System: Central Focus Magnification: 10x Objective Diameter: 50mm Angular Field of View (Real): 6.5° Angular Field of View (Apparent): 59.2° FOV at 1000 yds: 341 ft Close Focus Distance: 23 ft Exit Pupil: 5mm Relative Brightness: 25 Eye Relief: 17.2mm Size (Length x Width): 7 x 7.7 in Weight: 36 oz Interpupilary Distance: 56-72mm Waterproof/Fogproof: Yes Prism: Porro Supplied Accessories: Nikon binocular travel case and adjustable binocular strap and lens covers. *Warranty Info: This Nikon product is warranted by Nikon Inc. to be free from defects in material and workmanship for the lifetime of the product from the date of purchase by the original consumer purchaser. During this period if this product is found to have defects in material or workmanship and Nikon Inc. will at its option and without charge and either repair or replace this product with the same product and or if unavailable and a product of comparable specifications and value. This warranty extends to the original consumer purchaser only and is not assignable or transferable.