National Geographic 10X42 Single Bridge Binocular

The National Geographic 10×42 Single Bridge Binocular is a versatile roof-prism optic built for demanding outdoor use. With 10x magnification and 42 mm objective lenses, it delivers bright, detailed images at mid to long distances, making it well suited for nature observation, birdwatching, hiking, wildlife viewing, and general outdoor activities. The streamlined single-bridge design offers a comfortable, balanced hold while remaining relatively compact.

Key Features

Fully multi-coated lenses combined with superior BaK-4 prisms for excellent contrast, clarity, and colour fidelity.

42 mm aperture provides strong light-gathering ability for bright views, including in lower light conditions.

10x magnification for crisp detail at medium to longer ranges.

Waterproof and fog-proof (nitrogen-purged) construction for all-weather reliability.

Streamlined roof-prism design with a sturdy single bridge.

16.9 mm eye relief and twist-up eyecups for comfortable viewing, including for spectacle wearers.

Diopter adjustment for precise individual focus.

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

Technical Specifications

Optical design: Roof prism (BaK-4)

Magnification: 10x

Objective lens diameter: 42 mm

Coating: Fully multi-coated

Field of view: approximately 101 m at 1 000 m (5.8 degrees)

Close focus: 4.5 m

Eye relief: 16.9 mm

Waterproof: Yes

Fog-proof / Nitrogen purged: Yes

Eyecups: Twist-up

Body colour: Black

These binoculars provide a solid combination of optical performance, weather resistance, and handling comfort for users who need reliable mid-to-long-range viewing in the field.