Field glasses
arena® D+ 8 x 42
Art. Nr. 4254842
Dependable companion for newcomers to bird and wildlife observation.
Product Properties
- Bright, true-to-life images thanks to high quality BaK-4 prisms whose light transmitting capacity is further increased by silvering. A coincident reduction in harmful UV radiation ensures eye-friendly joy of discovery at all times.
- Absolutely watertight and thus suitable for any kind of weather.
- Nitrogen filling prevents misting of the internal optics if the temperature fluctuates.
- Spectacle eyepieces afford an optimal field of view even when wearing (sun) glasses.
- Stable tripod thread ensures shake-free viewing pleasure at all times.
Product Accessories
Comfortable carrying strap, bag, protective dust caps.
Technical data
| Construction type | roof bending |
| Tripod thread | Yes |
| Waterproof | Yes |
| Filled with nitrogen | Yes |
| Pupil spacing | 58 – 74 mm |
| Pupils focal distance | 18 mm |
| Oculars for wearer of glasses | Yes |
| Dimensions | 138 x 153 x 54 mm |
| Weight | 619 g |
| Prism material | BaK-4 |
| Prisms mirror coating | silvering |
| Lens coating | full multi-coating, silvering |
| Magnification | 8 x |
| Lens diameter | 42 mm |
| Exit pupill | 5.25 mm |
| Geometric luminosity | 27.6 |
| Twilight number | 18.3 |
| Near point | 3 m |
| Field of view/Visual field/Field of vision | 107 m/1.000 m |
| Warranty | 5 years |
Materials
| manual_arena_D.pdf | 5.6 MB |