10x42 ED Binoculars Roof Waterproof For Bird Watching Travel Stargazing
Parameter:
| BODY STYLE | SEMI-AROMATIC THERMOPLASTIC BODY |
| POWER | 8 X ± 5% |
| OBJECTIVE DIAMETER | Φ 42mm ± 1 mm |
| FEILD ANGLE | 6.8 ° ± 5% |
| FIELD OF VIEW(at 1000m/at 1000yds.) | 118m / 354ft. |
| EXIT PUPIL DIA. | Φ5.25mm ±10% |
| NEAR FOCUS | 2.5m |
| EYE-RELIEF | 17.2mm |
| RELATIVE BRIGHTNESS | 18.3 |
| OBJECTIVE LENS: | 4E3G |
| OCULAR LENS: | 3E2G |
| LENS TYPE: | SPHERICAL LENS |
| PRISM: | ROOF |
| OPTICAL MATERIAL | ALL SPHERICAL LENS AND PRISM ARE MADE OF OPTICAL GLASS |
| PRISM MATERIAL: | BaK4 |
| COATING CONDITION | ALL LENS - FULLY COATED |
| SURFACE TREATMENT | PAINT / RUBBER |
| RESOLVING POWER | 5.7 ” |
| FOCUSING SYSTEM | CENTER FOCUS |
| FOCUSING ADJUSTMENT | -4 TO +8 DIOPTER |
| OCULAR ADJUSTMENT | -4 TO +4 DIOPTER |
| ADJUSTABLE EYE PUPIL | 56--74mm |
Features:
* Extra-Low Dispersion (ED) objective lenses provide high resolution, high contrast images that are virtually free of optical defects like chromatic aberration (color fringing).
* Fully multi-coated optics deliver maximum light transmission through the optical path.
* Phase coated BaK-4 prisms produce vivid, true-to-life colors.
ED (Extra-low Dispersion) Glass lenses
ED glass ED glass gives you an image with little or no chromatic fringe so the final result brings a clearer and sharper image to your eyes, and provide light scattering, with an Abbe refractive index of 90.3; ED glass improves resolution and color fidelity, resulting in clear and sharp images. Multi-layer broadband coating ED lens technology provides more than 98.9999% light transmittance through binoculars.
Best Mgnification and Comfortable
This 10x42 binoculars has a superb maginifcation of 10X with 4 pieces and 3 groups lens. High-profile eyepieces make the field of view free from distortion and morecomfortable viewing. The carrying case allows for protective storage and easy portability when travelling.
High Quality - BaK4 prism & FMC optical glass
High refractive index and complete reflection of light bring clearer view. Fully multi-coated optical elements help to obtain high-resolution and high-contrast views, while prisms made of BaK-4 glass will provide you with enhanced color fidelity. Use our high-resolution binoculars to enjoy clear, detailed views and reliable performance.
Rubber Armor Waterproof and Fogproof and Shock Proof
Rubber Armor provides durable and secure, non-slip soft texture grip for any weather condition. Durable body completely to prevent moisture, dust and debris from entering the optics. 100% waterproof, O ring sealed and nitrogen purged for reliable, fog free performance.
Product Tags:
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10x42 ED HD Binoculars Roof Waterproof For Bird Watching Travel Stargazing Images
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