Vanguard Endeavor HD 65S Straight Eyepiece Spotting Scope with 15-45x Magnification Extra-low Dispersion glass (ED) for accurate color rendition and minimal fringing Bak4 phase-coated prism and fully multi-coated lenses Dual focus wheel for fine and course adjustment 100% waterproof and fogproof Rubber armored magnesium body with built in sunshield Detachable straight eyepiece with soft, comfortable rubber eyecup and long eye relief Premium Lifetime Warranty Zoom Magnification: 15-45x, Objective Lens Diameter: 65mm, Field of view: 144 ~ 68 ft/1000 yards, View angle: 2.75 ~ 1.3 degrees, Near focus: 14.8 ~ 18 feet, Eye relief: 19 ~ 20 mm, Weight: 51.0 ounces