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VIPER HD 20-60X80 STRAIGHT SPOTTING SCOPE For long-range observation, the 20-60x80 Viper HD spotting scope puts incredible viewing at your fingertips. Count on HD (High Density) extra-low dispersion glass for impressive resolution and color fidelity and XR fully multi-coated lenses for maximum brightness. Meet challenging conditions head-on with the superior fogproof and waterproof performance of the rugged Viper. Easily the best way to make your trophy selection without putting a mile on your boots, the high-performing Viper HD spotting scope has your name on it. OPTICAL FEATURES HD Lens Elements HD (High Density) extra-low dispersion glass delivers impressive resolution and color fidelity, resulting in High Definition images. XR Lens Coatings Vortex proprietary XR anti-reflective coatings, fully multi-coated on all air-to-glass lens surfaces, increase light transmission for maximum brightness. CONSTRUCTION FEATURES Porro Prism Offers maximum image quality and performance in a traditional design. Straight Body Design Valued for speedy target acquisition and ease of use. Most compatible design for use with car window mounts. Waterproof Optics are sealed with o-rings to prevent moisture, dust, and debris from getting inside the spotting scope. Fogproof Argon gas purging guarantees superior fogproof and waterproof performance. ArmorTek Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt. CONVENIENCE FEATURES Twist Eyecup Twists up and down for comfortable viewing with or without eyeglasses. Dual Focus Allows for maximum focusing precision with both coarse and fine focus adjustments. Sunshade Reduces glare and shields the objective lens from raindrops and snow. Rotating Tripod Ring Allows rotation of the eyepiece to a sideways position—most useful for viewing through an angled spotting scope body on a car window mount. Picatinny Accessory Rail Allows easy attachment of red dot type sights. Magnification 20-60 x Objective Lens Diameter 80 mm Linear Field of View 110-50 feet/1000 yards Angular Field Of View 2.1-1 degrees Close Focus 22 feet Eye Relief 18 mm Exit Pupil 4.1-1.4 mm Length 17.5 inches Weight 66.1 ounces Product Manual (PDF) Download