BRESSER Spezial Astro SF 20x80 ED Binoculars

 

High quality, waterproof, argon filled binocular with ED glass objective lenses for excellent purity of colours. Ideal for astronomy and landscape observation.

• Binoculars for astronomical and landscape observations
• High magnification a. extremly high light gathering capacity
• ED glass objective lenses for absolutely briliant images
• Waterproof and ARGON gas filled against fogging
• Magnification: 20x / objective lens diameter: 80mm
• Individual eyepiece focus and foldable rubber eyecups
• Highly corrected eyepieces - crisp images from edge to edge
• Fully multi coated optics / sturdy tripod adapter included
• Ergonomic rubber armouring - protected against shocks
• Dimensions: 310x250x100mm / weight: 2700g

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. 


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 

SCOPE OF DELIVERY 

• Binocular 
• Photo tripod adapter 
• Neckstrap 
• Dust covers 
• Case
• Instruction manual

Technical Data

FIELD OF APPLICATION
Field of application	Astronomy Night Bird watching & Nature observation
PRODUCT FAMILY
Product Family	Spezial-Astro
TYPE
Type	Standard Binoculars Marine binoculars Wide angle binoculars
OPTICAL SPECIFICATIONS
Optical design	Porro
Magnification	20
ED glass	✓
LE Eyepieces	✓
Mirror/Lens diam.	80 mm
Material prismn	BaK-4 ED Glass
Type of coating	Fully multi-coated
Exit pupil min.	4 mm
Eyepieces for eyeglass wearers	✓
Diopter setting	✓
Field of view at 1000m7	58 m
Field of view	3.3 degrees
Twilight factor7	40
Near focus from7	20 m
GENERAL TECHNICAL DATA
Waterproof8	✓
Bag/Pouch	nylon carrying case with storage compartments.
Inert gas purged	✓
Colour	black
Body material	Aluminium
Tripod adapter thread	✓
Single eye adjustment	✓
Eyecups	Rubber eyecups, foldable
Interpupilar distance min.	56 mm
Interpupilar distance max.	74 mm
Eye relief	16 mm
Body armouring	Rubber
Dust protection caps	Dust protection caps for front lens and eyepiece holder
Extended warranty	10 years
DIMENSIONS & WEIGHTS
Total length	310 mm
Total width	250 mm
Total height	100 mm
Net weight (without access.)	2700 g