Precision Optics at Your Fingertips: Vortex RS-56A Razor HD Angled Spotting ScopeVortex perfectly combines premium optics and a lightweight compact package with theVortex Razor HD 13-39x56mm Spotting Scope. This high-performance optic is ideal for backcountry hunters who require a spotting scope that weights as little as possible and doesn't take up much space in their pack - all without compromising optical quality. The Vortex Razor HD Spotting Scope achieves this with a streamlined construction highlighted by a helical focus wheel to cut down on any unnecessary weight and bulk. The Razor HD 13-39x56mm Spotting Scope innovative design also features two mounting options for tripods. The first is its ARCA Swiss-compatible foot which can be attached to any tripod or accessory that accepts ARCA Swiss rails. The second option is 1/4x20" female threaded insert that can be attached to any standard tripod quick-release plate that accepts 1/4x20" threaded studs.Like all of Vortex optics the Razor HD 13-39x56mm Spotting Scope offers exceptional optical quality. Optimized with select glass the Razor HD 13-39x56mm Spotting Scope delivers maximum light transmission outstanding resolution minimal chromatic aberration edge-to-edge sharpness and excellent color fidelity.Features of the Vortex Razor HD 13-39x56mm Spotting Scope:Compact lightweight designStreamlined helical focus wheelARCA Swiss compatible foot1/4x20" female threaded insertHD Optical SystemNeoprene Case Lens Covers and Lens Cloth includedAvailable in straight and angled configurationsIn The BoxLens coversNeoprene caseLens Cloth