BRESSER Topas 7-21x40
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| Weight: | 710 g |
| Brand: | BRESSER |
| Description: | Type: binoculars, magnification: 8 x, lens diameter: 22 mm, exit pupil diameter: 2.75 mm, functions: pupillary distance adjustment, features: case/pouch included, design: retractable eyecups, multilayer |
| Width: | 185 |
| Height: | 55 |
| Additional Information: | Relative brightness min - 3.61, protective covers for lenses and eyepieces |
| Type: | Binoculars |
| Length: | 160 mm |
| Lens diameter: | 40 mm |
| Exit pupil diameter: | 5.71 mm |
| Minimum focusing distance: | 8 m |
| Field of view at a distance of 1000 m: | 73 m |
| Increase: | 21 x |
| Prism material: | BK-7 |
| Relative brightness: | 32.6 |
| The Twilight Factor: | 28.98 |
| Prism type: | Porro |
| Focusing: | Central |