Pentax UP 8-16x21
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| Weight: | 310 g |
| Brand: | Pentax |
| Description: | Type: binoculars, magnification: 16 x, lens diameter: 21 mm, exit pupil diameter: 2.60 mm, functions: Zoom, pupillary distance adjustment, features: case/case included, design: aspherical lenses, retractable |
| Width: | 111 |
| Height: | 55 |
| Additional Information: | Belt, lens caps and eyepieces |
| Type: | Binoculars |
| Length: | 111 mm |
| Lens diameter: | 21 mm |
| Exit pupil diameter: | 2.6mm |
| Minimum focusing distance: | 3m |
| Field of view at a distance of 1000 m: | 87 m |
| Increase: | 16 x |
| Angular field of view real: | 5° |
| Eye relief: | 14 mm |
| Prism material: | BAK-4 |
| The Twilight Factor: | 13 |
| Prism type: | Porro |
| Focusing: | Central |