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Magnification: 25x. Objective 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

Product ID 75661
Brand Bresser GmbH, Germany
Warranty 2 years
EAN 4007922058924
Package size (LxWxH) 30x23x9 cm
Shipping Weight 1.68 kg
Description

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

Thanks to fully multi coated Bak-4 glass material and the extra large objective lens diameter, these binoculars provide bright and high resolution images. The high 25x magnification it is convenient not only for observing astronomical objects, but is also practical for viewing distant terrestrial objects too. Due to a very high reduction of stray light, by multi coating all air to glass surfaces, the binoculars deliver the best possible performance and excellent contrast.

Diopter compensation and foldable rubber eyecups give eye glass wearers the possibility of making the best use of these optics’ field of view. With the tripod thread in the lengthened centre axis, the Spezial Astro can be mounted onto any photographic tripod. For tripod use you need the optional available tripod adapter. The use of a tripod is highly recommended with these binoculars, as at the high magnification of 25x it's difficult to maintain a steady image by hand holding (though this is possible for short periods).

Features:

  • Binoculars for astronomical and long distance observations
  • Extremely high light gathering capacity
  • High magnification for distant objects
  • Tripod thread available

The kit includes:

  • Binocular
  • Neckstrap
  • Dust covers
  • Case
  • Instruction manual
Specifications
Product ID 75661
Brand Bresser GmbH, Germany
Warranty 2 years
EAN 4007922058924
Package size (LxWxH) 30x23x9 cm
Shipping Weight 1.68 kg
Prism type Porro
Magnification, x 25
Objective lens diameter (aperture), mm 70
Eyepieces LE (with exit pupil)
Optics material BaK-4
Lens coating fully multi-coated
Exit pupil diameter, mm 2.8
Eye relief, mm 17
Twilight factor 42
Field of view, ° 2
Field of view, m/1000m 35
Close focus, m 10
Eyepiece diopter adjustment
Interpupillary distance, mm 56 — 72
Focusing central
Eyecups rubber, foldable
Body aluminum, rubberized
Adaptable to a tripod standard 1/4" thread
Size classic
Application astronomical
Bag included
Pouch/bag in set nylon case
Mounting on a tripod