National Geographic 10X42 Open Bridge Binocular

The National Geographic 10×42 Open Bridge Binocular is a high-performance roof-prism optic designed for serious outdoor use. With 10x magnification and 42 mm objective lenses, it delivers sharp, bright images with excellent depth and colour, making it well suited for nature observation, birdwatching, wildlife viewing, hiking, and general field use. The open-bridge design improves handling comfort and reduces weight while maintaining a solid, balanced feel.

Key Features

BaK-4 roof prisms and fully multi-coated lenses for maximum light transmission, sharpness, and vivid colour reproduction, including in lower light conditions.

Open-bridge design for a more secure, ergonomic grip and reduced overall weight.

Waterproof and fog-proof (nitrogen/inert gas purged) construction for reliable all-weather performance.

Suitable for spectacle wearers with diopter adjustment and eyepieces designed for glasses.

Tripod adapter thread for steady, hands-free viewing.

Black rubber-armoured body for durability and a secure hold.

Technical Specifications

Optical design: Roof prism

Magnification: 10x

Objective lens diameter: 42 mm

Prism material: BaK-4

Coating: Fully multi-coated

Field of view at 1 000 m: 114 m

Near focus: from 4 m

Waterproof: Yes

Inert gas purged / Fog-proof: Yes

Tripod adapter thread: Yes

Colour: Black

Eyepieces for eyeglass wearers: Yes

Diopter setting: Yes

These binoculars offer a premium combination of optical quality, weather resistance, and user-friendly open-bridge handling for demanding outdoor observation.