The Sightmark Solitude 8x42 XD Binoculars are rugged, high-performance binoculars built for outdoor enthusiasts. They feature 8× magnification with 42 mm objective lenses and extra-low dispersion (XD) glass that helps reduce color aberrations and improve sharpness and contrast across the field of view. The roof-prism design with fully broadband multi-coated optics enhances light transmission for brighter images from dawn to dusk, and the rubber-armored, nitrogen-filled, O-ring sealed body is waterproof, fog-proof, and dust-proof for reliable performance in harsh environments. Twist-up eyecups and a magnesium bridge provide comfortable viewing and durable, lightweight handling, making them well-suited for birdwatching, hunting, hiking, and general nature observation. Sightmark Solitude XD 8x42 Binoculars SM12104