BaK4 Prism Telescope Binocular Viewer 50mm Lens Military Marine Binoculars
7x50 Low Light Vision Powerful Telescope 10x50 Binoculars 8x40 for Bird Watching
SPECIFICATION:
1. Quality FMC BAK4 prism features a bright image with vivid contrast to offer you every little detail of an object.
2. 50mm large objective lens, high light transmittance, and outstanding optical performance even in glimmer condition.
3. Nitrogen filled waterproof binoculars can use under severe weather, such as rainstorms and high humidity.
4. Easily attach these binoculars to tripods quickly.
5. Rubber-coated body provides great shock resistance and a comfortable touch, firm grasp.
6. This binoculars telescope best for sightseeing, traveling, sports, bird-watching, concerts, hunting, hiking, etc.
PARAMETER:
| Item | 7x50 | 10 X 50 | 12x50 |
| Body style | Semi-aromatic Thermoplastic Body | Semi-aromatic Thermoplastic Body | Semi-aromatic Thermoplastic Body |
| Field Angle | 6.6° ± 5% | 6.5° ± 5% | 5.5° ± 5% |
| Field of View (at 1000m/at 1000yds.) | 115m/345ft | 115m/345ft | 96m/288ft |
| Exit Pupil Dia. | Φ7.0mm ± 10% | Φ7.0mm ± 10% | Φ7.0mm ± 10% |
| Near Focus | 7m | 7m | 7m |
| Eye-Relief | 27.4mm | 16.16m | 11.5mm |
| Relative Brightness | 49 | 25 | 17.39 |
| Eyecups | Ruber Fold-down Eyecup | Ruber Fold-down Eyecup | Ruber Fold-down Eyecup |
| Objective Lens | 2E1G | 2E1G | 2E1G |
| Ocular Lens | 3E2G | 4E3G | 3E2G |
| Optical Materials | ALL LENS AND PRISM ARE MADE OF OPTICAL GLASS (PRISM: BaK4) | ALL LENS AND PRISM ARE MADE OF OPTICAL GLASS (PRISM: BaK4) | ALL LENS AND PRISM ARE MADE OF OPTICAL GLASS (PRISM: BaK4) |
| Coating Condition | ALL LENS - FULLY COATED | ALL LENS - FULLY COATED | ALL LENS - FULLY COATED |
| Surface Materials | Rubber Paint And Rubbue | Rubber Paint And Rubbue | Rubber Paint And Rubbue |
| Resoving Power | 5.6" | 5.6" | 5.6" |
| Focusing Systerm | Central focusing | Central focusing | Central focusing |
| Focusing Adjustment | -4 TO +8Diopter | -4 TO +8 Diopter | -4 TO +8 Diopter |
| Ocular Adjustment | -4 TO +4 Diopter | -4 TO +4 Diopter | -4 TO +4 Diopter |
| Adjustable eye pupil | 56--72 mm | 56--72 mm | 56--72 mm |
| Prism | Porro | Porro | Porro |
MORE INFORMATION:
1. Packing:
- 1 x binocular
- 1 x Carrying Bag
- 1 x Hand strip
- 1 x Cleaning Lens Cloth
- 1 x Manual Instrcution
- 2 x Eyepiece cover
Customized packing available.
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