Manufacturers & Suppliers of Astronomical Telescopes in India Serving Amateur Astronomers Since 1976
Manufacturers & Suppliers of Astronomical Telescopes in India Serving Amateur Astronomers Since 1976
BRESSER 20x80 Porro Binoculars for Astronomy
Thanks to fully multi coated Bak-4 glass material and the extra large objective lens diameter these binoculars provide bright, crisp images from edge to edge.
Due to 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.
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 integrated in the lengthened centre axis, the ASTRO can directly be mounted onto a tripod.
Features :
binoculars for astronomical and long distance obversationes
extremly high light gathering capacity
can directly be mounted onto tripods
Scope Of Delivery :
binoculars
case
| FIELD OF APPLICATION | |
|---|---|
| Field of application |
|
| TYPE | |
| Type | Standard Binoculars |
| OPTICAL SPECIFICATIONS | |
| Optical design | Porro |
| Magnification | 20 |
| LE Eyepieces | ✓ |
| Mirror/Lens diam. | 80 mm |
| Material prismn | BaK-4 |
| Type of coating | Fully multi-coated |
| Colour of coating | violet |
| Eyepieces for eyeglass wearers | ✓ |
| Diopter setting | ✓ |
| Field of view at 1000m7 | 56 m |
| Light intensity7 | 16 |
| Twilight factor7 | 40 |
| Near focus from7 | 9 m |
| GENERAL TECHNICAL DATA | |
| Bag/Pouch | nylon carrying case with carrying strap |
| Tripod adapter thread | ✓ |
| Focusing system | Central focus wheel |
| Eyecups | Rubber eyecups, foldable |
| Interpupilar distance min. | 57 mm |
| Interpupilar distance max. | 72 mm |
| Colour | black |
| Body material | Aluminium |
| Body armouring | Rubber/Plastic |
| Dust protection caps | for objective and eyepiece, individually removable |
| DIMENSIONS & WEIGHTS | |
| Total length | 330 mm |
| Total width | 235 mm |
| Total height | 108 mm |
| Net weight (without access.) | 2100 g |
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STARTRACKER [ India ]
EXPLORE SCIENTIFIC [ USA ]
G.S.O. [ Taiwan ]
Goto Mounts / Tripods [ U.S.A ]
BRESSER [ Germany ]
William Optics [ Taiwan ]
Founder Optics [ Taiwan ]
MEADE [ U.S.A ]
CELESTRON [ U.S.A ]
S V Bony [ China ]
ZWO [ China ]
EYEPIECES & ACCESSORIES
CAMERA ADAPTORS
HD CAMERA & AUTO GUIDERS
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