Pentax UP 8x25 WP Binoculars
- 8X magnification
- 25mm lens objectives
- 108m field of view
- Waterproof JIS Class 6
- New fully multi-coated optics
- Dual-axis, single body design with synchronized eye-piece IPD adjustment
- High Quality BaK4 prism
- Aspherical lens elements
- Pull-up eyecups
- Eye-relief
- Inverted porro prism design
- Diopter adjustment
- 10 Years Warranty from CR Kennedy Australia
This U-series Pentax binoculars feature a unique inverted porro prism design with dual-axis, single body design with synchronized eye-piece IPD adjustment for better light transmission. Its aspherical lens elements provide edge-to-edge sharpness and reduce aberrations. The new fully multi-coated lenses has the purpose of maximizing the rays of light passing through the lens, it therefore prevents flare and ghosting from the field of view. The pull-up eyecups provide comfortable eye-relief for longer viewing. Rubber housing is incorporated for a firm grip and extra protection. With 8X magnification and 25mm lens objectives, this model will provide a fine and compact companion on nature trips. It can reach a span of up to 108m field of view. UP 8x25 WP binoculars are made to have a waterproof JIS Class 6 rating which are fully sealed against fog and harsh weather and can be submerged in up to 3 feet of water.
Product Features in Detail
New Fully-multi-coated optics
Fully multi-coated lenses serve the essential purpose of maximizing the amount of light passing through a lens, thereby prevent flare and ghosting from interfering with your view. PENTAX applies multiple layers of coatings to every surface of every element and prism in the full Sport Optics line-up. These fully-multi-coated optics assure the maximum light transmission resulting in a clear, crisp view of the world.
BaK4 prisms
Due to its outstanding refractive index, the BaK4 glass prism found in all PENTAX Sport Optics is highly acclaimed for its perfectly round exit pupil and clear, unvignetted image.
Aspherical lens elements
Edge-to-edge sharpness is a vital element to comfortable viewing. To achieve this, we utilise aspherical lens elements in our eyepieces. This is a specially shaped lens design that reduces aberration to a minimum.
Inner Focus Optics Design
This sophisticated optical design is critical to low-maintenance and long life guarantee. Exposure to airbourne particles and moisture is avoided, thereby ensuring that no outside influences can penetrate the housing and disrupt functionality.
PENTAX Waterproofing
PENTAX waterproof products are fully sealed and purged with laboratory grade nitrogen to provide a fog proof view in the harshest weather conditions. With a JIS Class 6 rating, PENTAX waterproof binoculars can even be submerged in up to 3 feet of water.
Long eye relief design
The long eye relief offered in all PENTAX Sport Optics allows the viewer to see the entire field of view clearly and effortlessly. This is especially beneficial to eyeglass wearers, and allows viewing for extended periods of time without added eye strain.
Other Features
Exterior rubber coating that provides the binoculars with superb resistance to shocks and impacts
Type | Porro Compact |
Magnification | 8x |
Objective Lens Diameter | 25 mm |
Field of View at 1000m | 108 m |
Exit pupil aperture | 3.1 mm |
Eye Relief | 15 mm |
Eyecups | Pull-up Milti-Stop |
Height | 55 mm |
Width | 110 mm |
Depth | 115 mm |
Weight | 300 g |
Water proof | Yes (JIS Class 6) |
Accessories | Objective and eyepiece caps, case, strap |
Prism coating | BaK4 |
Lens coating | Multi-coated |
Twilight Factor | 14.1 |
Close focus | 1.9 m |
Tripod Adaptor | With adapter U – PENTAX Code No. 69552 |
Pentax UP 8x25 WP Binoculars
Eyepiece Cap
Objective Cap
Neck Strap
Case
10 years Australian Warranty with CR Kennedy

SKU: Pentax 61931
UPC: 0027075288867