Thanks to fully multi-coated Bak4 optics and extra large objective lens diameter, these powerful binoculars achieve edge-to-edge sharpness and brilliant images.
- Spezial Astro binoculars for astronomical and long distance observations
- Magnification: 20x / objective lens diameter: 80mm
- Fully multi coated / tripod thread
- Dimensions: 330x235x108mm / weight: 2100 g
- WHAT'S INCLUDED: binoculars, case
With BRESSER, you can enjoy a smooth introduction to the vast world of astronomy. Our detailed information ("Telescope Guide") provides valuable tips for beginners—but even experienced astronomers can use the information we provide (e.g., tables for the geographical latitude of all major world cities) as a reference.
Here is the table of contents of the comprehensive BRESSER Telescope Guide:
- 2. The View into the Starry Sky
- 2.1 Observing with the Naked Eye
- 2.1.1 Observing Constellations with the Naked Eye
- 2.2 Observing with Binoculars
- 2.2.1 Observing Planets and Moons with Binoculars
- 2.2.2 Observing Deep Sky Objects with Binoculars
- 2.2.3 Every Beginning is Easy
- 2.3 Observing with a Telescope
- 2.4 The Moon
- 2.4.1 The Moon Phases
- 2.4.2 The Far Side of the Moon
- 2.4.3 The Moon Map
- 2.4.4 Maria (Seas)
- 2.4.5 Mare
- 2.4.6 Craters
- 2.4.7 The Ray Craters
- 2.5 Observing the Solar System with a Telescope
- 2.5.1 Where are the Planets?
- 2.5.2 Planet Observation
- 2.5.3 The Position of the Planets Relative to the Sun
- 2.5.4 The Planets Introduce Themselves
- 2.5.5 Deep Sky Observation with a Telescope
- 2.6 Practical Observation Tips and Tricks
- 2.6.2 Tips for Optimal Observation Conditions
- 2.7 The Most Beautiful Objects Throughout the Year
- 4. Telescopes
- 4.1 The Telescope as an Observation Instrument
- 4.2 Optics
- 4.2.1 Refractor (Lens Telescope)
- 4.2.2 Reflector (Mirror Telescope)
- 4.3 Mechanics
- 4.3.1 Altazimuth Mount
- 4.3.2 Equatorial Mount
- 4.3.3 Drive Motors
- 4.4 Accessories
- 4.4.1 Eyepieces
- 4.4.2 Important Tips for Eyepiece Selection
- 4.4.3 Filters
- 4.4.4 Photographic Accessories
- 4.4.5 Other Accessories
- 5.1 Which Telescope for Whom?
- 5.1.1 Deep-Sky Observations
- 5.1.2 Observing Closer Planets
- 5.1.3 The Topic of Portability
- 5.1.4 Price Factor When Buying a Telescope
- 6. Useful Tables
- 6.1 Table for the Geographic Latitude of All Major World Cities
- 6.1.1 Observers in the Northern Hemisphere (N):
- 6.1.2 Observers in the Southern Hemisphere (S):
- 6.2 Lookup Table for Notable Stars
- 6.3 Getting Acquainted with the Universe - or: Distances in Space
Sky Guides by Bresser
True art of living consists in seeing the wonderful in the everyday. (Pearl S. Buck)
Table of Contents
1. The History2. The Features
2.1 The Key Figures
2.2 The Magnification
2.3 The Objective Diameter
2.4 The Exit Pupil
2.5 The Twilight Factor
2.6 The Brightness
2.7 The Interpupillary Distance
2.8 The Eye Relief (Focal Point of the Eyepiece)
2.9 The Field of View
2.10 The Focus
2.11 The Rubber Armor
3. The Glass
3.1 The Coating
3.2 The Glass Material
3.3 Porro or Roof Prisms
3.4 Achromats
4. Types of Binoculars
4.1 Binocom or Nautic
4.2 Night Glass or Night Vision Device
4.3 Residual Light Amplifiers
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Diopter compensation and foldable rubber eyecups give wearers of glasses the possibility of making the best use of these binocular's wide field of view.
With the tripod thread integrated in the strong central support column, which is adjustable along the centre axis bar, the BRESSER Spezial-Astro 20x80 Porro Binoculars can directly be mounted onto any suitable camera-style tripod and balanced front to back, once in place.
FEATURES
- Binoculars for astronomical and long distance observations
- Extremely high light gathering capacity
- Can directly be mounted onto tripods with standard 1/4" attachments
- Binoculars
- Carry case
Bag/Pouch: | nylon carrying case with carrying strap |
---|---|
Batteries included: | 0 |
Batteries required: | 0 |
Body armouring: | Rubber/Plastic |
Body material: | Aluminium |
Colour: | black |
Colour of coating: | violet |
Compass: | 0 |
Diopter setting: | 1 |
Dust protection caps: | for objective and eyepiece, individually removable |
ED glass: | 0 |
Extended warranty (years): | 5 |
Eyecups: | Rubber eyecups, foldable |
Eyepieces for eyeglass wearers: | 1 |
Field of application [Binoculars]: | Astronomy, Bird watching & Nature observation, Long-range observation |
Field of view at 1000m 7) (m): | 56 |
Focusing system: | Central focus wheel |
Inert gas purged: | 0 |
Interpupilar distance max. (mm): | 72 |
Interpupilar distance min. (mm): | 57 |
LE Eyepieces: | 1 |
Magnification: | 20 |
Material: | Aluminium |
Material prisms: | BaK-4 |
Mirror/Lens diam. (mm): | 80 |
Near focus from 7) (m): | 40 |
Net Weight total (incl. accessories) (g): | 2320 |
Net weight (without access.) (g): | 1930 |
Optical design: | Porro |
Power supply unit included: | 0 |
Product Family [Binoculars]: | Spezial-Astro |
Relative brightness 7): | 16 |
Single eye adjustment: | 0 |
Total height (mm): | 110 |
Total length (mm): | 330 |
Total width (mm): | 235 |
Tripod adapter thread: | 1 |
Twilight factor 7): | 40 |
Type [Binoculars]: | Standard Binoculars |
Type of coating: | Fully multi-coated |
Waterproof 8): | 0 |
Zoom function: | 0 |
Produkt- und Sicherheitshinweise
Manufacturer:
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede
www.bresser.de
- This item is not suitable for children under 3 years.
- Keep packaging materials (plastic bags, rubber bands, etc.) and small parts away from children! There is a risk of suffocation!
- Never look directly at the sun or near the sun with this device. There is a RISK OF BLINDNESS!
- Risk of material damage! Do not disassemble the device! In case of a defect, please contact your specialist dealer. They will contact the service center and may send the device for repair if necessary. Do not expose the device to temperatures above 60° C!
- The binoculars are intended for private use. Respect the privacy of others.