The 18–36x 50mm prism design offers versatile magnification ranges for any application, while the multi-coated optics deliver awesome visual command during dawn and dusk. With waterproof, fogproof housing, every model is built for the long haul. Bushnell spotting scopes give you the advantage from the world’s high point of brightness, clarity and edge-to-edge detail – whether you’re birding at sea level or hunting above timberline. The HDOS (High definition optical system) combines our key technologies: ED Prime Extra-Low Dispersion glass, premium BaK-4 prisms and fully multi-coated lenses. Together these deliver flawless color fidelity, ultra-crisp images and optimum light transmission.