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Magnification: 20x. Objective lens diameter: 80mm

Porro
Prisms of the binoculars adjust the image orientation projected by the objective
20
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 75660
Brand Bresser GmbH, Germany
Warranty 2 years
EAN 4007922058948
Package size (LxWxH) 33x25x11 cm
Shipping Weight 3.5 kg
Description

Spezial Astro binoculars from Bresser are ideal for astronomy and landscape observation.

This is a professional large binocular with ED glass objective lenses for the very highest demands on color fidelity and brilliance. With the best viewing characteristics, a robust marine version and a sturdy tripod adapter.

Thanks to fully multi coated Bak-4 glass material, the extra large objective lens diameter and highly corrected eyepieces with 5 lenses in 3 groups these binoculars provide bright, crisp images from edge to edge. The high 20x magnification it is convenient not only for observing astronomical objects but is also practical for viewing distant terrestrial objects. Due to a very high reduction of stray light, the binoculars deliver the best possible picture and a perfect sight. With the individual eyepiece focus once set you can get a sharp image for all astronomical distances. Foldable rubber eyecups give eye glass wearers the possibility of making the best use of these optics’ field of view.

The binoculars are waterproof and argon gas filled to avoid internal fogging. The ergonomic rubber armouring provides a good grip and is also protected against shocks.

With the included heavy duty foto tripod adapter the Spezial Astro ED can be mounted onto any foto tripod which offers a standard 1/4inch or 3/8inch thread. The use of a tripod is also highly recommended at a high magnification of 20x to obtain a steady image.

Key features:

  • Binoculars for astronomical and landscape observations
  • Extremly high light gathering capacity
  • High magnification for for distant objects
  • Fully multi coated optics
  • Waterproof and argon gas filled against fogging
  • Magnification: 15x; objective lens diameter: 70mm
  • Individual eyepiece focus and foldable rubber eyecups
  • Highly corrected eyepieces for crisp images from edge to edge
  • Ergonomic rubber armouring - protected against shocks
  • Dimensions: 310x250x100mm; weight: 2700g
  • Heavy duty foto tripod adapter included

The kit includes:

  • Binocular
  • Photo tripod adapter
  • Neckstrap
  • Dust covers
  • Case
  • Instruction manual
Specifications
Product ID 75660
Brand Bresser GmbH, Germany
Warranty 2 years
EAN 4007922058948
Package size (LxWxH) 33x25x11 cm
Shipping Weight 3.5 kg
Prism type Porro
Magnification, x 20
Objective lens diameter (aperture), mm 80
Eyepieces 5 elements in 3 groups
Optics material BaK-4, ED
Lens coating fully multi-coated
Exit pupil diameter, mm 4
Eye relief, mm 16
Twilight factor 40
Field of view, ° 3.3
Field of view, m/1000m 58
Close focus, m 20
Eyepiece diopter adjustment
Interpupillary distance, mm 56 — 74
Focusing individual for each eyepiece
Eyecups foldable, rubber
Body aluminum, rubberized
Body filling argon
Waterproof
Application astronomical, marine, Birdwatching
Bag included
Pouch/bag in set nylon case
Mounting on a tripod
Pouch/case/bag in set pouch
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