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Astronomical, water-resistant, nitrogen filled. Porro prisms. Magnification: 25x. Lens diameter: 70mm

Porro
Prisms of the binoculars adjust the image orientation projected by the objective
25
The higher the magnification of the binoculars is, the larger the object will be, but the narrower the field of view (FOV) and the darker the image
70
The larger the aperture is, the more light there will be that enters the optical tube and the image will be brighter, although a larger aperture will increase the size of the binoculars
Availability
Future arrivals
25 December 2025
20+

Product ID 85537
Brand Levenhuk, Inc., USA
Warranty lifetime
EAN 5905555025100
Package size (LxWxH) 35x27x11 cm
Shipping Weight 3.5 kg
Description

Levenhuk Bruno PLUS 25x70 Binoculars are created for those who are interested in the distant corners of space and fascinating terrestrial landscapes. The device allows you to examine the relief of lunar craters, dimly luminous nebulae, star clusters at night, and during the day – the smallest elements of a distant landscape or the behavior of wild animals from a safe distance.

The binoculars provide a 25x magnification for the detailed observation of distant objects. The 70mm objective lenses guarantee high aperture and image brightness across the entire field of view. The optical system is based on classic Porro prisms of BaK-4 glass with a high refractive index and large objective lenses of K9/F4. All of the optical elements have a multi-layer anti-reflective coating that increases light transmission. The binoculars provide a resolution threshold up to 4 arcseconds and that allows you to see the target in the slightest detail. Central focusing wheel with smooth motion makes it possible to bring the image into focus nice and easy.

The aluminum alloy body is complemented by a rubber coating and is completely sealed according to the IP67 standard. The device is protected from dust, heavy rain, and short-term immersion to a depth of one meter. Nitrogen filling prevents the optics from internal fogging during rapid temperature changes. Diopter adjustment +4D and twist-up eyecups with three fixable positions ensure precise adjustment for individual eyesight peculiarities. The device maintains a secure grip even when wearing gloves, and the mechanical strength of the structure can withstand accidental impacts in the field. All of this makes the binoculars a durable companion for the most demanding amateur astronomers and naturalists who value the combination of optical power and readiness for unpredictable weather.

It is recommended to mount the binoculars on a tripod to obtain a completely stable image and reduce the strain on your hands. Tripod mounting is performed using an adapter from the kit. It is compatible with any tripod of 1/4" standard. The adapter is made of metal.

Key features:

  • 25x magnification for a detailed view of distant terrestrial and space objects
  • Large-aperture optics with a 70mm objective lens and fully multi-layer anti-reflective coating for obtaining a bright image across the entire field of view
  • Sealed IP67-protected body can withstand brief immersion in water up to one meter
  • Nitrogen-filled body prevents internal surfaces of optical elements from fogging during rapid temperature changes
  • 3-position twist-up eyecups for precise adjustment for individual eyesight peculiarities
  • Durable rubber-coated aluminum body for shock protection and secure grip
  • Easily tripod mountable – the kit includes an adapter

The kit includes:

  • Binoculars
  • Eyepiece and objective lens protective caps
  • Strap
  • Pouch
  • Cleaning wipe
  • Metal adapter for a tripod
  • User manual and warranty slip
Specifications
Product ID 85537
Brand Levenhuk, Inc., USA
Warranty lifetime
EAN 5905555025100
Package size (LxWxH) 35x27x11 cm
Shipping Weight 3.5 kg
Prism type Porro
Magnification, x 25
Objective lens diameter (aperture), mm 70
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
Prisms coating fully multi-coated
Exit pupil diameter, mm 2.8
Eye relief, mm 12
Twilight factor 41.83
Relative brightness 7.84
Resolution threshold, arcseconds 4
Field of view, ° 2.6
Field of view, m/1000m 45.5
Close focus, m 20
Eyepiece diopter adjustment, diopters ±4
Interpupillary distance, mm 53 — 74
Focusing central
Eyecups rubber, twist-up (3 fixed positions)
Body aluminum alloy, rubberized
Body filling nitrogen
Waterproof
Moisture resistance
Degree of moisture/water protection IP67, complete protection against dust and temporary immersion in water
Hermetically sealed design
Operating temperature range, °C -10...+53
Adaptable to a tripod standard 1/4" thread, requires an adapter (included in the kit)
Size classic
Application astronomical
Mounting on a tripod
Pouch/case/bag in set pouch