Endurance 16-48 x 68 Spotting Scope. Dielectric coatings designed to increase light reflectivity. Fully multi-coated optics to produce sharp images Close focus – see detail from 16.4ft/5m. BAK-4 porro prisms for intense color and contrast, dual focus knob to achieve ultra fine focusing. Body rotation for viewing in virtually any position. Stay-on soft scope cover for maximum protection. Twist-up eye cup and pull out sunshade. Digi-scope compatible for use with your camera.