Arsenal NBN18-2050N
Binoculars, magnification: 20 x, lens diameter: 50 mm, diameter of the output pupil: 2.5 mm, weight: 850 g
Binoculars, magnification: 20 x, lens diameter: 50 mm, diameter of the output pupil: 2.5 mm, weight: 850 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 |
50 mm |
Diameter of the output pupil |
2.5 mm |
Angular field of view is real |
4.1 degrees |
Field of view at a distance of 1000m |
85 m |
Focusing |
centralised |
Minimum Focusing Distances |
6.0 km |
Type of prism |
Porro |
Materials of prism |
BK-7 |
Relative brightness |
6.25 |
The Twilight Factor |
31.62 |
Removal of the exiting pupil |
12 mm |
Diopter correction |
±4D |
Adjusting the distance between pupils |
|
Interpupillary distance, min |
58 mm |
Distance between pupils, max |
72 mm |
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 |
|
Housing material |
Plastics |
Mounting on a tripod |
|
Without eyeball |
|
Flap/case in set |
|
Colors |
black |
Dimensions and weight |
|
Width |
195 mm |
Heights |
62 mm |
Length |
185 mm |
Weight (disambiguation) |
850 g |