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Astronomical, water-resistant, nitrogen filled. Porro prisms. Magnification: 30x. Lens diameter: 80mm

Porro
Prisms of the binoculars adjust the image orientation projected by the objective
30
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
80
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

Product ID 85538
Brand Levenhuk, Inc., USA
Warranty lifetime
EAN 5905555025117
Package size (LxWxH) 39x27x13 cm
Shipping Weight 4 kg
Description

Levenhuk Bruno PLUS 30x80 Binoculars are created for those who are eager to view the most remote celestial and terrestrial bodies: The relief of the lunar surface, phases of Venus, and close binary stars. Despite high magnification, a 2.4° field of view covers an area wide enough to capture the target in objective lenses.

The device provides a powerful 30x magnification for extra-detailed terrestrial and space observations. The 80mm objective lenses collect maximum light in poor lighting conditions. The optical design is based on BaK-4 glass Porro prisms and K9/ZF1 glass lenses that have a full multi-layer anti-reflective coating for brightness and contrast across the entire field of view. The optics produce a clear and rich image and allow you to distinguish small details in low light, which is highly appreciated by astronomy enthusiasts.

Aluminum alloy body is fully sealed according to the IP67 standard, i.e., dust- and waterproof. The nitrogen filling prevents lenses from internal fogging during the rapid temperature changes that may occur during night observations. The rubber coating of the binoculars improves the grip, and the 3-position twist-up eyecups help to set them at a comfortable distance from the eyes. Central focusing and diopter adjustment allow you to focus quickly in accordance with eyesight peculiarities.

Since the binoculars provide a high magnification, it is difficult to observe in a handheld manner: The image is not stable enough, the weight of the binoculars is strongly felt and causes fatigue. Stationary usage with a tripod is recommended. Any tripod with a standard 1/4 inch mount is suitable for mounting the binoculars. The built-in adapter ensures quick mounting without the need to purchase an additional adapter.

Key features:

  • 30x magnification provides high penetrating power for studying distant terrestrial objects, lunar craters, and binary stars
  • High light transmission due to 80mm objective lenses for dim objects observations
  • Porro prism system of BaK-4 glass with full multi-layer anti-reflective coating for a brighter image
  • Fully sealed body according to the IP67 standard, nitrogen filled to eliminate internal fogging of optics
  • Rubber coating of aluminum body for a better grip
  • 3-position twist-up eyecups for comfortable viewing when wearing glasses or without glasses
  • Built-in adapter for mounting the binoculars on a tripod

The kit includes:

  • Binoculars
  • Eyepiece and objective lens protective caps
  • Strap
  • Pouch
  • Cleaning wipe
  • User manual and warranty slip
Specifications
Product ID 85538
Brand Levenhuk, Inc., USA
Warranty lifetime
EAN 5905555025117
Package size (LxWxH) 39x27x13 cm
Shipping Weight 4 kg
Prism type Porro
Magnification, x 30
Objective lens diameter (aperture), mm 80
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 2.67
Eye relief, mm 15
Twilight factor 49
Relative brightness 7.12
Resolution threshold, arcseconds 3.5
Field of view, ° 2.4
Field of view, m/1000m 42
Close focus, m 25
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
For eyeglass wearers
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