BRESSER Spezial Astro 20x80
Astronomical binoculars, magnification: 20 x, lens diameter: 80 mm, output pupil diameter: 4 mm, Weight: 2130 g
Astronomical binoculars, magnification: 20 x, lens diameter: 80 mm, output pupil diameter: 4 mm, Weight: 2130 g
Main Characteristics |
|
Types |
Binoculars |
Theater binoculars |
|
Astronomical binoculars |
|
Built-in compass |
|
Built-in range finder |
|
Optical stabilizer |
|
Digital Cameras |
|
Technical Specifications |
|
Zoom |
|
Increases |
20x |
Lens diameter |
80 mm |
Diameter of the output pupil |
4 mm |
Angular field of view is real |
3.2 degrees |
Field of view at a distance of 1000m |
56 m |
Focusing |
centralised |
Minimum Focusing Distances |
9.30 a.m. |
Type of prism |
Porro |
Materials of prism |
BAK-4 |
Relative brightness |
6 |
The Twilight Factor |
40 |
Adjusting the distance between pupils |
|
Aspheric lenses |
|
Low-dispersion lenses |
|
Multilayer coating of lenses |
|
Corpus |
|
Retractable eyelids |
|
Rubber eyelids |
|
Protection from moisture and dust |
|
Nitrogen/argon filling |
|
Shockproof housing |
|
Rubberized hull |
|
Mounting on a tripod |
|
Without eyeball |
|
Flap/case in set |
|
Colors |
black |
Dimensions and weight |
|
Width |
235 mm |
Heights |
115 mm |
Length |
330 mm |
Weight (disambiguation) |
2,130 g |