Get from Amazon : br br Celestron 71426 Cavalry 15x70 Binocular (Olive Green) br br BaK-4 Prisms Increased contrast and resolution for sharper more detailed images br Fully Multi-Coated Optics Increased light transmission through the optical path for brighter images with increased resolution and detail br Large 70mm Objective Lenses Great for low-light applications br Waterproof and Fogproof Ability to use in all weather conditions Nitrogen purged to prevent internal fogging of the lenses br Tripod adaptable Use the included tripod adapter to attach the binocular to a tripod for extended viewing sessions :