Norbert Standard 7–21x40
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| Brand: | Norbert |
| Description: | Type: binoculars, magnification: 21 x, lens diameter: 40 mm, exit pupil diameter: 5.70 mm, functions: Zoom, features: case/pouch included, design: moisture and dust protection, rubber body |
| Type: | Binoculars |
| Housing material: | Plastic |
| Lens diameter: | 40 mm |
| Exit pupil diameter: | 57 mm |
| Field of view at a distance of 1000 m: | 92 m |
| Increase: | 21 x |
| Prism material: | BAK-4 |
| Relative brightness: | 32 |
| Prism type: | Porro |