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Magnification: 15x. Objective lens diameter: 70mm

Porro
Prisms of the binoculars adjust the image orientation projected by the objective
15
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 75659
Brand Bresser GmbH, Germany
Warranty 2 years
EAN 4007922058931
Package size (LxWxH) 33x25x11 cm
Shipping Weight 2.7 kg
Description

Spezial Astro SF 15x70 binoculars from Bresser are ideal for astronomy and landscape observation.

Thanks to fully multi coated Bak-4 glass material, the extra large objective 70mm lens diameter and highly corrected eyepieces with 5 lenses in 3 groups, these binoculars provide bright, crisp images from edge to edge of their field of view. The high 15x magnification 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 excellent clarity. With the individual eyepiece focus set you can get a sharp image for all astronomical distances, with no "focus creep" to spoil the view . Foldable rubber eyecups give eye glass wearers the possibility of making the best use of these binoculars wide field of view. Large diameter ocular eyepiece lenses provide extremely comfortable viewing, making longer observations possible without eye fatigue.

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, making them rugged and ideal for transportation.

With the tripod thread in the lengthened centre axis, the Spezial Astro can be mounted onto any photographic tripod. For tripod use you need an optional available tripod adapter. The use of a tripod is highly recommended, as hand holding at the high magnification of 15x makes it difficult to obtain a steady image.

Features:

  • binoculars for astronomical and landscape observations
  • extremely 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 – ruggedly protected against shocks
  • tripod thread available

The kit includes:

  • binoculars
  • neckstrap
  • dust covers
  • case
  • instruction manual
Specifications
Product ID 75659
Brand Bresser GmbH, Germany
Warranty 2 years
EAN 4007922058931
Package size (LxWxH) 33x25x11 cm
Shipping Weight 2.7 kg
Prism type Porro
Magnification, x 15
Objective lens diameter (aperture), mm 70
Eyepieces 5 elements in 3 groups
Optics material BaK-4
Lens coating fully multi-coated
Exit pupil diameter, mm 4.7
Eye relief, mm 20
Twilight factor 32
Field of view, ° 4.4
Field of view, m/1000m 77
Close focus, m 10
Eyepiece diopter adjustment
Interpupillary distance, mm 56 — 74
Focusing individual for each eyepiece
Eyecups rubber, foldable
Body aluminum, rubberized
Body filling argon
Waterproof
Adaptable to a tripod standard 1/4" thread
Size classic
Application hunting and fishing, astronomical, marine
Bag included
Pouch/bag in set nylon case
Mounting on a tripod
Pouch/case/bag in set pouch
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