Leupold BX-2 Alpine HD 10x42 Binoculars – 181177

The Leupold BX-2 Alpine HD 10x42 Binoculars, part number 181177, are a full-size Abbe-Koenig roof prism binocular delivering 10x magnification on 42mm objectives, with a field of view of 114 m at 1,000 m (342 ft at 1,000 yds) and 15 mm of eye relief, at 689 g (24.3 oz).

The 42mm objectives feed Abbe-Koenig prisms and Leupold's Advanced Optical System, fully multi-coated. The chassis is rubber-armoured and nitrogen-purged, 100% waterproof and fog-proof, focuses down to 4.1 m (13.5 ft), adjusts from 57–78 mm between the eyes, and carries twist-up eyecups and a built-in 1/4-20 rotatable tripod adapter port.

How It Compares

The 10x42 is the standard general-purpose format in the BX-2 Alpine HD line — 114 m at 1,000 m (342 ft at 1,000 yds) in the same 689 g (24.3 oz) body as the BX-2 Alpine HD 8x42, which gives a wider 131 m field and 18 mm of eye relief against this model's 15 mm. If you want 10x with a larger objective for dusk work, the BX-2 Alpine HD 10x52 uses a 52mm front at 865 g (30.5 oz) and restores 18 mm of eye relief. The step up in glass is the BX-5 Santiam HD 10x42, which keeps the same format on a magnesium chassis. Browse all binoculars, or see the full Leupold range.

Ideal For

• Hill and woodland deer stalking, in the standard 10x42 format at 689 g (24.3 oz)
• Roe stalking from a high seat, judging beasts across a 114 m field at 1,000 m (342 ft at 1,000 yds)
• Night fox and vermin spotting at first and last light
• Birding and general observation, as a first serious binocular

Key Features

• Glass: Advanced Optical System, fully multi-coated, for bright, high-contrast glassing
• Prism: Abbe-Koenig prisms
• Optics: 10x magnification on 42mm objectives, 114 m field of view at 1,000 m (342 ft at 1,000 yds)
• Eyecups: Twist-up, giving 15 mm of eye relief
• Housing: Rubber-armoured and nitrogen-purged, 100% waterproof and fog-proof
• Focus: Close focus 4.1 m (13.5 ft), interpupillary adjustment 57–78 mm
• Mount: Built-in 1/4-20 rotatable tripod adapter port

Technical Specifications

What's Included

• BX-2 Alpine HD 10x42 binocular
• Lens covers
• Neck strap
• Carry case
• Lens cloth

UK Delivery & Support

Imported from the USA, duty paid by us, and dispatched tracked from the UK — nothing to pay on delivery — backed by UK-based support.

Frequently Asked Questions

Is 10x42 the right format for UK stalking?Yes — 10x42 is the standard UK stalking format, and this is the BX-2 Alpine HD version of it: 114 m of field at 1,000 m (342 ft at 1,000 yds) at 689 g (24.3 oz). Note that eye relief is 15 mm, the shortest in the line, so if you wear spectacles the 8x42 or 10x52 at 18 mm will suit you better.

Will the BX-2 Alpine HD 10x42 work with spectacles?Eye relief is 15 mm and the eyecups twist up and down, so you can wind them flat, keep your spectacles on and still see the full 114 m field at 1,000 m (342 ft at 1,000 yds).

Will it stand up to British weather?The BX-2 Alpine HD 10x42 has a rubber-armoured, nitrogen-purged chassis and is 100% waterproof and fog-proof, so a wet day on the hill or a cold morning in a high seat will not fog it internally.

Can it be used on a tripod?Yes — the BX-2 Alpine HD 10x42 has a built-in 1/4-20 rotatable tripod adapter port, which is worth using for long spells glassing one hillside.

How does it compare with the BX-5 Santiam HD 10x42?The BX-5 Santiam HD 10x42 keeps the same 10x42 format and 114 m field but moves to the Professional-Grade Optical System with phase-coated BaK4 roof prisms, DiamondCoat 2 and Guard-ion coatings, an open-bridge magnesium chassis, 16.6 mm of eye relief and 1.5 m close focus.

Is this genuine Leupold stock?Yes — factory-new Leupold stock dispatched from the UK.