While 10x42 binoculars are tried-and-true, sometimes you just need more light. By moving up to the BX-2 Alpine HD 12x52mm, you increase the amount of light getting to your eye, which is great for low-light conditions.Whether it's your first binocular or your 50th, your glass needs to give you a bright image, feel comfortable in your hands, and be able to take a beating. Now available with high-definition performance, the BX-2 Alpine HD binocular checks all of these boxes and more. Built around Leupold's Advanced Optical System, it offers tried and true light transmission for extended glassing sessions, best in class glare reduction in harsh light, and the resolution and clarity that recreational sportsmen and sportswomen demand.It comes with Pro Gear accessories, too: including a GO Afield binocular harness, lens covers, and lens cloth. And like all Leupold binoculars, it's fogproof, waterproof, and guaranteed to perform for life.• High-Definition Clarity: Scratch And Smudge Resistant Lens Coatings• Lightweight & Comfortable: Ergonomic Open Bridge Design• Easy To Clean: Field Replaceable Eyecups• Tripod Ready: Built-In 1/4-20 Tripod Adapter PortExtreme Climate ExposureWe make sure our optics perform at the highest level in the harshest conditions by ensuring they will survive from -40 degrees Fahrenheit all the way up to 160 degrees Fahrenheit.Waterproof + FogproofFrom torrential downpours to crossing rivers, you'll never have to worry about a Leupold binocular leaking or fogging up. Our proprietary gas blend and seals are tested to a 33-foot depth and a multitude of pressure changes.FeaturesHigh DefinitionHigh-definition, calcium-fluoride lenses ensure incredible clarity at all magnification levels.Magnesium HousingLightweight but tough as nails, a rugged magnesium housing protects the optic during fast-paced action.Over-Sized EyepieceAll-day glassing comfort with increased contact area, and a flexible ergonomic design.Tripod ReadyA built-in 1/4-20 rotatable tripod adapter port makes it easy to mount to a tripod.Twist Up EyecupsFeatures twist-up eyecups and generous eye relief for comfortable extended viewing.