The Sightmark Solitude 7x36 XD binocular features phase corrected, fully broad band multi-coated optics, which provides maximum light transmission and optimal brightness, so any outdoorsman or sports aficionado can explore and enjoy his or her surroundings to the fullest. Its distinguishing features are its XD, extra low dispersion glass, which provides high light transmission, giving high resolution, contrast and color fidelity and its magnesium bridge makes the unit lightweight, noncorrosive and durable. With its smaller objective lens, the Solitude 7x36 XD binocular is more compact and lighter weight, for easier transportation. Featuring Bak-4 roof prisms, the Solitude 7x36XD binocular is equipped with superior glass for a clearer and better quality image. The Bak-4 roof prism system features a straight through light system, which achieves better light transmission and allows for a more compact design. From early dawn to late dusk, the optimum color fidelity and clarity of image enhances any viewing experience, while a generously long eye relief provides comfortable viewing. The twist up eye cups on the Sightmark Solitude 7x36 XD binocular provides a custom fit and helps correct eye relief, even for individuals who wear eye glasses. The Sightmark Solitude 7x36 XD binocular boasts a rugged, yet lightweight, rubber armored body that is nitrogen filled and O-ring sealed making it waterproof and fog proof. Featuring dust proof construction, the Sightmark Solitude 7x36 XD binocular is highly durable for a lifetime of use.