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National Geographic 8x42mm Open Bridge Binocular Black UG4039
The NatGeo Binocular 8x42mm OpenBridge is a compact roof-prism binoculars featuring exceptional optics. Sturdy and balanced vision comes through ergonomic eye support for users who wear glasses and highest definition optical lens finishes. Don’t let what may appear as low magnification at 8x fool you in first glance, because this product is dynamite!
The 8x magnification will let what is 1km away appear as just about 125m ahead from you. The advantages of this relatively small magnification are twofold; a large 131-metre field of view at a distance of 1000 meters and a stable image, even without a tripod, enabling you to keep track of moving objects. The binoculars also have an intuitive central focusing wheel for quick focusing.
The 42 mm diameter lens lets in plenty of light to produce a clear and vivid image. The full multi-layer coating significantly reduces reflections and increases light transmission to ensure a bright image right through until twilight. Thanks to the premium BaK-4 glass material, you can enjoy colour-true, highly detailed images.
FEATURES
- Rubber armouring for optimal grip and protection
- Waterproof
- Filled with nitrogen to prevent the insides of the lenses from fogging up
- Central focusing wheel for ease of use
- Twist-up eye cups for glasses wearers
- Tripod connecting thread
SPECIFICATIONS
| Optical Design | Room-prism binoculars |
| Magnification | 8x |
| Lens Diameter | 42 mm |
| Glass Material | BaK4 |
| Coating | Full multi-layer coating |
| Waterproof | Yes |
| Colour Of Coating | Green |
| Eyepieces For Eyeglass Wearers | Yes |
| Diopter Setting | Yes |
| Field Of View At 1000m | 131m |
| Bag/Pouch | Multifunctional nylon case |
| Inert Gas Purged | Yes |
| Tripod Adapter Thread | Yes |
| Focusing System | Central focus wheel |
| Eyecups | TwistUp |
| Body Armouring | Rubber |
| Dust Protection Caps | Dust caps for eyepiece and objective |
| Net Weight (Without Access.) | 701g |
Lastly, a few features must be highlighted further. These binoculars are very practical in that the twist-up eye cups allow you to adjust the distance between your eyes and the ocular lenses, while the dioptre compensation of +/- 2 can compensate for differences in vision between your left and right eyes. Furthermore, the rubber armouring provides a good grip and protects against impact. Thanks to the waterproof design, you don’t need to worry about exposure to moisture. Additionally, the binoculars are also filled with nitrogen to prevent the lenses from fogging up in poor weather conditions.
These binoculars are guaranteed to become your long-lasting companion on exciting outdoor adventures. Discover the wonders of the world up-close with the NatGeo Binocular 8x42mm OpenBridge.
HOW YOU CHOOSE
To begin with, a telescope or spotting scope may be more suitable for observing objects close up (meaning, bringing far objects really close). For general observation, a pair of binoculars is perfect.
In general, there are two types of binoculars, namely the older and original Porro Prism design (named after its inventor Ignacio Porro, who designed this prism system around 1850) and the more modern Roof Prism design. In order to choose your binoculars (e.g., selecting by the type, magnification strength and lens size) it may be useful to consult this overview.
The magnification power of your binoculars has a significant impact on the performance. If you have a more powerful pair, you “can get closer to the objects” you are looking at. However, the image will be smaller also. Reduce the power if you want a larger image within your visual field.
There is some variance within a single zoom class of field of vision. Hence people usually look for the 10 power Binoculars with the greatest field of view. While a broader field of view is important to some, the outskirts is unimportant to many.
There are many factors to consider, such as layout/optical technology (including types, brand and quality of optics, such as the lens type and prism type e.g. BK-4, Bak4, BAK7, SP, AK, and their coatings), the magnification/power rating, minimum focus distance (generally about 2.5 meters), the focusing mechanism (individual, focus free, or center), the housing materials, coatings and finishes such as rubberising or waterproofing.
National Geographic Binoculars
The field of optics can be complex and to choose your device can be tricky. Any question you may have, we are here to assist, but you can also search for more info by referring to this resource. Nevertheless, perhaps take a few moments to read this opinion about why National Geographic Binoculars are the best. You will certainly be glad you invested the money. Not only attractive from the outside, what you find when looking through it is eye-opening.
