Levenhuk Bruno PLUS 25x70 Binoculars (85537)

Levenhuk Bruno PLUS 25x70 Binoculars (85537)

The Levenhuk Bruno PLUS 25x70 binoculars are designed for observers who want to explore distant celestial objects and far-off terrestrial landscapes. They allow detailed study of lunar crater formations, faint nebulae, and star clusters at night, while during the day they reveal fine elements of distant scenery or wildlife activity from a safe distance.

Powerful Magnification and Bright Optics

With 25× magnification, these binoculars provide a close and detailed view of remote subjects. The 70 mm objective lenses ensure strong light-gathering ability and consistent brightness across the entire field of view.

The optical system is based on classic Porro prisms made of BaK-4 glass with a high refractive index, combined with large K9/F4 objective lenses. All optical elements feature fully multi-layer anti-reflective coatings to maximize light transmission. A resolution threshold of up to 4 arcseconds enables clear detail recognition. The smooth central focusing wheel allows quick and precise focus adjustment.

Rugged and Weatherproof Construction

The body is made of aluminum alloy with a protective rubber coating for improved grip and impact resistance. It is fully sealed to the IP67 standard, offering complete protection against dust and temporary immersion in water up to one meter. Nitrogen filling prevents internal fogging during sudden temperature changes.

Twist-up eyecups with three fixed positions and ±4 diopter adjustment allow accurate customization for individual eyesight. The design ensures a secure grip even when wearing gloves, and the robust construction withstands accidental impacts in demanding field conditions.

Stable Viewing with Tripod Compatibility

For maximum image stability and reduced hand strain, tripod mounting is recommended. The included metal adapter is compatible with any standard 1/4" tripod, ensuring secure and stable installation.

Key Features

• 25× magnification for detailed observation of distant terrestrial and astronomical objects

• 70 mm large-aperture objective lenses with fully multi-coated optics

• Porro prism design using BaK-4 glass

• IP67-rated sealed body resistant to dust and temporary water immersion

• Nitrogen-filled housing to prevent internal fogging

• Three-position twist-up eyecups with ±4 diopter adjustment

• Durable rubber-coated aluminum construction

• Tripod adapter included for stable mounting

Included in the Package

• Binoculars

• Protective caps for eyepieces and objective lenses

• Neck strap

• Carrying pouch

• Cleaning cloth

• Metal tripod adapter

• User manual and warranty slip

Specifications

• Product ID: 85537

• Brand: Levenhuk, Inc., USA

• Warranty: Lifetime

• EAN: 5905555025100

• Package size: 35 × 27 × 11 cm

• Shipping weight: 2.72 kg

Optical System

• Prism type: Porro

• Magnification: 25×

• Objective lens diameter: 70 mm

• Optical design: 6 elements in 4 groups

• Eyepieces: 4 elements in 3 groups

• Objectives: 2 elements in 1 group

• Optics material: BaK-4

• Lens coating: Fully multi-coated

• Prism coating: Fully multi-coated

• Exit pupil diameter: 2.8 mm

• Eye relief: 12 mm

• Twilight factor: 41.83

• Relative brightness: 7.84

• Resolution threshold: 4 arcseconds

• Field of view: 2.6°

• Field of view at 1000 m: 45.5 m

• Close focus distance: 20 m

Construction and Ergonomics

• Eyepiece diopter adjustment: ±4 diopters

• Interpupillary distance: 53–74 mm

• Focusing system: Central

• Eyecups: Rubber, twist-up (3 fixed positions)

• Body material: Aluminum alloy with rubber coating

• Body filling: Nitrogen

• Waterproof rating: IP67

• Hermetically sealed design

• Operating temperature range: −10°C to +53°C

• Tripod compatibility: Standard 1/4" thread (adapter included)

• Application: Astronomical and long-distance observation

• Mounting on tripod: Yes

• Carrying case included: Pouch