Vanguard Spirit XF Binoculars The US product warranty is valid only when shipped from or sold by an authorized reseller. Visit the Vanguard World company website for a list of authorized dealers Bak4 phase-coated prisms with fully multi-coated lenses and Two stage twist out eyecups with long eye relief Excellent edge-to-edge clarity and brilliant color reproduction 100% waterproof and fogproof Lightweight, open bridge body design Textured rubber armor for a secure grip and impact resistance Premium Lifetime Warranty Magnification: 8x, Objective Lens Diameter: 42mm, Field of view: 409 ft/1000 yards, View angle: 7.8 degrees, Near focus: 6.9 feet, Eye relief: 20 mm, Weight: 24.7 ounces