On-the-go glassing has never been easier than with this little wonder of forward-thinking engineering. The reverse porro prism design of the Vanquish uses high quality glass and fully multi-coated optics to render images crisp and bright, with a wide field of view that makes quick work of scanning any landscape. Weighing in at 12.7 ounces and affordably priced, this compact performer delivers in more ways than one. Included in the Box Rainguard Eyepiece Cover Comfort neck strap Deluxe carry case OPTICAL FEATURES Fully Multi-Coated Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. CONSTRUCTION FEATURES Porro Prism Valued for a rich depth of field, wide field of view, and three-dimensional image. Waterproof O-ring seals prevent moisture, dust and debris from penetrating the binocular for reliable performance in all environments. Fogproof Nitrogen gas purging prevents internal fogging over a wide range of temperatures. Rubber Armor Provides a secure, non-slip grip, and durable external protection. CONVENIENCE FEATURES Adjustable Eyecups Twist up and down for comfortable viewing with or without eyeglasses. Center Focus Wheel Adjusts the focus of both binocular barrels at the same time. Diopter Adjusts for differences in a user&';s eyes. Located on right eyepiece.