Vanguard Endeavor XF Angled Eyepiece Spotting Scope 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 prism, fully multi-coated lenses and excellent light transmission even in low light conditions Rubber armored magnesium body with built in sunshield 100% waterproof and fogproof Large and comfortable angled eyepiece with long eye relief Quick adjustment focus wheel Premium Lifetime Warranty Zoom Magnification: 15-45x, Objective Lens Diameter: 60mm, Field of view: 141 ~ 68 ft/1000 yards, View angle: 2.7 ~ 1.3 degrees, Near focus: 16.4 ~ 19.7 feet, Eye relief: 19 ~ 20 mm, Weight: 45.2 ounces