Description
Durable, lightweight and stylish, the BD series binoculars are ideal for everything from sports and hiking to hunting and nature observation. The lightweight, ergonomic body of the Kowa BD 8x32 WP binoculars is waterproof and filled with dry nitrogen, preventing the optics from fogging up in extreme temperature changes. Fully multi-coated lenses and phase-corrected prisms with C3 reflective coating provide crisp, sharp images with excellent detail.
Kowa C3 Prism Coating - Kowa ROOF binoculars use Schmidt-Pechan prisms made from special grades of optical glass with exceptional characteristics. Since one surface of the Pechan prism does not provide full reflection, Kowa has developed a coating with the highest reflectivity - “KowaC³”. This has allowed us to obtain a reflection coefficient higher than that of other coatings that use silver or aluminum. Thus, the “KowaC³” coating has a reflection coefficient of 99% or more in the entire visible spectrum (from 400 to 700 nm).
Phase Coating is a special phase-correcting coating that is applied to one of the surfaces of the prism wrapping system in the form of the thinnest layers. The cost of such a coating is very high, and the application process requires precision accuracy, so only renowned optics manufacturers can afford such technological complication. Phase correction is necessary exclusively for the Roof optical system, since, passing through such a prism, the light flux is decomposed into two parallel beams of light waves, an out-of-phase shift by half the length of the light wave occurs, which leads to a decrease in image resolution, as well as a decrease in contrast. Phase Coating corrects this shift. As a result, the image is as clear and contrasting as possible. Today, the design of a modern high-quality optical device of the Roof prism system is almost unthinkable without phase-correcting coating.
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Waterproof - means that the optics are sealed with an O-ring and protected from moisture penetration according to the international class IPX7. Immersion in liquid for 30 minutes to a depth of 1 meter will not cause the slightest damage to the device and will not affect its functionality. Such optics are not afraid of any weather conditions.
Fogproof - means that the body is filled with dry nitrogen from the inside, which eliminates moisture condensation on the internal surfaces when the temperature changes. As a result, the optics do not fog up from the inside, and there is no corrosion of materials under the influence of moisture. Air is removed from the device and replaced with an inert gas (in this case, nitrogen N2), which does not contain water vapor and does not condense.
Made in Japan . It is no secret that Japan has long been the leader among countries in the development and implementation of advanced technologies in almost all areas of science and technology. Today, the Japanese are patenting an increasing number of innovations in the optical technology industry, having pushed aside even the Germans, who had previously held the leading position here. Moreover, the philosophy of attitude to work does not allow the Japanese to produce a mediocre product. That is why the modest but capacious inscription “Made in Japan” testifies to the high level of technology and impeccable quality of the product. In other words, you get the best of the best.
Optical characteristics:
- Magnification: 8x
- Lens diameter, mm: 32
- Exit pupil size, mm: 4
- Twilight Factor: 16
- Aperture: 16
- Minimum focusing distance, m: 1.5
- Field of view, m/1000 m: 131
- Center distance adjustment, mm: 59-72
- Diopter correction: +5/-5
Design features:
- Optical design: Roof prism
- Lenses: Fully Multi coated
- Prisms: BAK4 with phase correction coating and C 3 reflective coating
- Water Resistance: 100% Waterproof Case
- Anti-fog protection: thanks to hermetic sealing and nitrogen filling of the housing
- Focusing: central wheel
- Body: rubberized
- Rotating and sliding eyecups with multiple locking positions
- Possibility of mounting a tripod
Equipment:
- Binoculars
- Protective eyepiece and lens caps
- Wide neck strap
- Soft case for transportation
Overall dimensions:
- Weight, kg: 0.560
- Size, mm: 124x122x50
