The BX-3 Alpine HD 10x42mm uses a familiar 10x42 format to balance useful reach with a broad view for scanning wildlife, birdlife and terrain. Its Elite Optical System is designed to deliver strong light transmission, glare reduction and edge-to-edge clarity, while HD lenses support colour and image resolution. The result is a viewing system built to keep useful detail visible across changing outdoor light and conditions.

Handling matters just as much when binoculars spend hours in your hands. The magnesium chassis keeps the body to approximately 641g, and the textured rubber armour and large central focus dial give you a secure, straightforward control layout. Interchangeable Form-Fit eyecups let you tune the fit around your eyes, including a low option for use with glasses, while the built-in rotating tripod port gives you an easy way to add compatible support for longer observation sessions.

Guard-ion coating helps shed water and dirt from the exterior lenses, while waterproof and fogproof construction helps keep the internal optical system clear through changing weather, elevation and temperature. A binocular harness, lens covers and lens cloth are supplied for carrying and routine care.

Key Features

• Clear Viewing As Light Changes: Leupold's Elite Optical System combines strong light transmission, glare reduction and edge-to-edge clarity, supported by HD lenses for colour and image detail.
• Wide View For Easier Scanning: 10x magnification gives useful reach while the 114m field of view at 1000m keeps more of the scene visible.
• Eyecups To Suit The Viewer: Three interchangeable Form-Fit eyecup styles let you choose winged cups for blocking side light, medium cups for general comfort or low cups for use with glasses.
• Built For Outdoor Conditions: The magnesium chassis keeps weight controlled, while rubber armour provides a secure grip and the body is waterproof and fogproof.
• Ready For Supported Viewing: A built-in rotating 1/4-20 tripod port lets you add compatible support for longer observation sessions.
• Easier Lens Care: Guard-ion hydrophobic coating helps shed water and dirt from the exterior lens surfaces to keep the view clearer.