Built for hunters who rely on their eyes to spot movement, break down terrain, and stay engaged at distance, the BX-3 Alpine HD 12x50mm Hunting Binoculars deliver the low-light clarity and wide field of view open-country and long-range glassing demand. Leupold's Elite Optical System maximizes light transmission for bright dawn-to-dusk images, reduces glare in harsh light, and delivers edge-to-edge HD clarity. A redesigned magnesium chassis keeps weight down while adding durability and improved ergonomics, including a refined armor texture and interchangeable Form-Fit eyecups in three sizes. A hydrophobic Guard-ion lens coating sheds dirt and water for a low-maintenance, crisp image, and a large, tactile focus dial makes precise adjustments easy even with gloves. Like all Leupold binoculars, the BX-3 Alpine HD is waterproof, fogproof, and guaranteed for life. Elite Optical System for enhanced light transmission and glare reduction High-Definition lenses for clarity, color, and image resolution Guard-ion hydrophobic lens coating sheds dirt and water Interchangeable Form-Fit eyecups in three sizes Built-in 1/4-20 rotatable tripod adapter port Redesigned magnesium chassis with refined armor texture Large, tactile central focus dial usable with gloves Waterproof and fogproof construction