Kowa BD32 Series Roof Prism Binoculars
Kowa Japan proudly present their heritage BD32 Series binoculars. Produced in Japan, Kowa infuse over half a century of heritage in optics design and manufacture into this widely acclaimed series. Boasting top end features such as C3 optical coatings, lightweight balance and 100% waterproofing, the BD32 Series are capable of delivering top level performance and providing a quality optical experience for the most discerning user.
Total refocus achievable in just 1point5 revolutions of the focus wheel
Kowa uses top quality Japanese fully multi-coated eco-glass to produce their BD lenses and prisms. As a result of such focus and attention on the quality of the internal optics, the BD Series boast top end light transmission, optimal contrast and colour definition, resulting in lifelike viewing subjects.
The BD32 Series use the more compact Schmidt-Pechan prism system, which has a key benefit of keeping the binoculars light weight. However, one common issue found in the Schmidt-Pechan design is a loss of reflectivity. In order to counter, Kowa engineers created their C3 Ultra Reflective prism coating. This specialist dielectric coating is extremely reflective and produces a 99% reflectivity rate across the visible light spectrum, a vast improvement on the 85% rate produced by more traditional metallic lens coatings such as silver or aluminium. With such a high reflectivity rate, the C3 coating reduces the amount of light lost in transmission producing brighter, clearer and more vivid images.
Another issue faced in all types of optical construction is polarization of light during transmission, causing a loss in image contrast and resolution. To ameliorate, Kowa engineers apply phase correction coatings to the roof prism surfaces which greatly improve image quality.
Fully tested waterproof and fogproof protection
Designed with function
Functionality and usability are the key principles behind the extensive design features incorporated into the BD32 Series. A large and textured focus wheel sits in the centre of the binoculars which has been designed to be ultra fast and responsive. In just 1.5 revolutions of the centre wheel, a user can quickly refocus from near to far so they never miss the moment. Weighing just 565g and measuring 12.2cm (L) x 12.7cm (W) x 5cm (H), the BD32 Series exemplify the mid-size binocular. Not too light so as to be susceptible to the perils of optical shake but at the same time small enough to slip into a bag or even pocket.
The body is ergonomically shaped and incorporates specially positioned grooves allowing users to maintain a good grip in all conditions. Located on the eyepieces, click stop and slide up eyecups allow a user to adjust the distance between their pupil and eyepiece, they can also accommodate spectacle wearers providing them with a complete field of view. The optics have been configured to allow a close focus distance of just 1.5m, a useful feature rarely found on binoculars in this size class. Finally, there is a centrally positioned tripod socket which allow the binoculars (with use of an L mount adapter) to be attached to a tripod.
Built for the great outdoors
The BD32 Series have been designed to be fully optimised for use in any climate, no matter how extreme. Firstly, all body joints and cavities have been fully sealed to make the binoculars 100% waterproof. Each pair is thoroughly water tested after production to ensure that they hold up to their 100% waterproof claim - if a pair fails any of these stringent tests then it does not leave the factory! Each binocular barrel has been injected and sealed with nitrogen gas in order to counter any internal fogging of the optics, a commonly found problem when the binoculars are subjected to rapid temperature change.
The BD32 binoculars are wrapped in a thick polymer exoskeleton which acts as a form of armour, designed to appropriately protect the internal optics from casual knocks and scrapes. The body armour also serves a dual purpose by providing a user with a firm surface to grip even when wet. Finally, the binoculars come in a dark green colour, the particular shade of which has been specially chosen by Kowa in order to help camouflage them when in the great outdoors.
Look and function optimally in the great outdoors
Supplied with a useful set of accessories
The Kowa BD32 Series binoculars come with a set of high quality accessories. A durable case with belt loop and carry strap, helps protect the binoculars when not in use. A premium quality neck strap constructed of durable neoprene and a soft padded underlining, help to distribute the weight of the binoculars evenly around the shoulders thus ensuring they sit comfortably around the neck during use or transport. Finally, a high quality rainguard and a pair of objective lens covers ensure that all lens surfaces are protected when not in use.
Could be used for.....
Incorporating so many complimentary features, the Kowa BD32 Series binoculars have a diverse number of applications. Top end image reproduction makes the binoculars perfectly suited to the discerning user who puts a large emphasis on quality and optical performance.
Thanks to the various outdoor design features, such as 100% waterproofing and rubber armouring, the binoculars are perfectly suited to use in extreme or very wet outdoor conditions. Applicable types of leisure pursuits range from bird watching, safaris or just general observation. The outstanding close focus distance make the binoculars great for studying subjects close up such as insects or flowers. Furthermore, the green colour makes them ideally suited to various forms of covert outdoor pursuits, such as hunting or stalking.
Finally, thanks to the lightweight and compact credentials of the binoculars, they are extremely portable making them suitable for users who intend to travel. They can be used fatigue free by people young and old making them a great shared family device.
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| || Kowa BD 8x42 || Kowa BD 10x42 || Kowa BD 8x32 || Kowa BD 10x32 || Kowa BD 8x25 || Kowa BD 10x25 |
|Magnification ||8x ||10x ||8x ||10x ||8x ||10x |
|Objective Diameter (mm) ||42mm ||42mm ||32mm ||32mm ||25mm ||25mm |
|Weight (g) ||730g ||745g ||560g ||565g ||320g ||320g |
|Close Focus (m) ||2m ||2m ||1.5m ||1.5m ||1.8m ||1.8m |
|Field of view (@1000m) ||110m ||105m ||131m ||105m ||110m ||87.3m |
|Real Field of View (degrees) ||6.8 ||6 ||7.5 ||6 ||6.3 ||5 |
|Exit Pupil (mm) ||5.25mm ||4.2mm ||4.0mm ||3.2mm ||3.1mm ||2.5mm |
|Size (LxWxH) ||146x127x51mm ||146x127x51mm ||124x122x50mm ||127x122x50mm ||111x107x39mm ||111x107x39mm |
|Eye Relief ||18.3mm ||14.3mm ||15.0mm ||15.0mm ||15.8mm ||17.7mm |
|Relative Brightness ||27.6 ||17.6 ||16 ||10.2 ||9.6 ||6.3 |
|Twilight Factor ||18.3 ||20.5 ||16 ||17.9 ||14.3 ||15.8 |
|Colour ||Green ||Green ||Green ||Green ||Green ||Green |