Kowa BD Waterproof
Price range: 4,359 kr through 4,689 kr
Compact and waterproof binoculars with a 25 mm objective lens diameter. They are nitrogen purged to prevent fogging and have a close focus of 1.8 m.
Kowa BD Waterproof
A compact binocular with a 25 mm objective lens diameter designed for sports, outdoor activities and travel.
Optics and image quality
The BD25 is constructed with roof prisms and BaK-4 glass. All surfaces are fully multi-coated with FMC and C3 coatings on the prisms to ensure high light transmission and contrast. It features a real field of view of 50 ° and a close focus distance of 1.8 m.
Handling and adjustment
The eyepieces are Twist-Up type and the diopter adjustment is +/-4. A large focus wheel controls the sharpness. The dual barrel design ensures the binoculars are comfortable to hold even during long periods of observation.
Durability and dimensions
The body is rubber armoured for a firm grip, even in wet conditions. The binoculars are 100 % waterproof and have been nitrogen purged and sealed to prevent internal fogging. Dimensions are 107 x 111 x 39 mm (W x H x D) and the weight is 320 g.
Compare variants
| Magnification | Exit Pupil Ø | Eye Relief | Twilight Factor | Field of View (m at 1000 m) |
|---|---|---|---|---|
| 8×25 | 3.1 | 16 | 14.3 | 110 |
| 10×25 | 2.5 | 18 | 15.8 | 87 |
Specifications
| Apparent field of view | |
|---|---|
| Diameter | |
| Dimensions | |
| Dioptre adjustment | |
| Exit pupil Ø | |
| Eyecup | |
| Eye relief | |
| Field of view (m at 1000 m) | |
| Glass type | |
| Interpupillary distance | |
| Magnification | 8×25, 10×25 |
| Magnification | |
| Manufacturer | Kowa |
| Minimum focus distance | |
| Objective lens diameter | |
| Optical coating | |
| Prism type | |
| Tripod adapter | |
| Twilight factor | |
| Warranty period | |
| Waterproof |
Are these binoculars waterproof?
Yes, they are 100 % waterproof.
How do they prevent internal fogging?
They are purged and sealed with nitrogen gas.
What is the minimum distance I can focus on?
The close focus distance is 1.8 m.
What type of glass is used in the optics?
They use BaK-4 glass and Japanese ECO-glass.
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