Binoculars Barska 7-21x40 COLORADO
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| Brand: | Barska |
| 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 |
| Type: | Binoculars |
| Lens diameter: | 40 mm |
| Exit pupil diameter: | 57 mm |
| Minimum focusing distance: | 10 m |
| Field of view at a distance of 1000 m: | 90 m |
| Increase: | 21 x |
| Diopter adjustment: | ±5D |
| Relative brightness: | 32.49 |
| The Twilight Factor: | 16.73 |
| Prism type: | Porro |
| Focusing: | Central |