About this product
Part Number: 61931
The Pentax U-series - These compact, inverted porro-prism models feature a durable dual-axis, single body design with synchronised IPD adjustment and full multi-coating for better light transmission. Aspherical lens elements give you edge-to-edge sharpness. They are a perfect “utility” companion for a multitude of applications.
This line-up takes a different approach. The dual-axis and inverted porro prism design makes it compact and light weight. Combined with aspherical lens elements for edge-to-edge sharpness, BaK4 prisms and multi-coated lenses you get a star performer ideal as a travel companion, for outdoor events or for general purpose usage.
- New fully multi-coated optics
- Inverted porro prism design
- Waterproof JIS Class 6
- Aspherical lens elements providing edge-to-edge sharpness
- High Quality BaK4 prism to enhance transmission and resolution
- Dual-axis, single body design with synchronized eye-piece IPD adjustment
- Deep, blue-tinted rubber armouring for maximum protection and grip
- Pull-up eyecups combined with comfortable eye-relief
- Centrally-located lockable diopter adjustment
New Fully-multi-coated optics
Fully multi-coated lenses serve the essential purpose of maximising
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.
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 waterproof products are fully sealed 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.
Exterior rubber coating that provides the binoculars with superb resistance to shocks and impacts.
What's in the box
- UP Binoculars
- Objective Lens Caps
- Eyepiece Lens Caps
- Carrying Case
- Neck Strap
- Lens Cloth
- Instruction Manual
|Model ||8x25 ||10x25 |
|Product Code ||61931 ||61932 |
|Type ||Porro Compact ||Porro Compact |
|Magnification ||8x ||10x |
|Objective Lens Diameter ||25 mm ||25 mm |
|Field of View at 1000m ||108 m ||87 m |
|Exit pupil aperture ||3.1 mm ||2.5 mm |
|Eye Relief ||15 mm ||15 mm |
|Eyecups ||Pull-up Multi-Stop ||Pull-up Multi-Stop |
|Height ||56 mm ||56 mm |
|Width ||110 mm ||110 mm |
|Depth ||115 mm ||115 mm |
|Weight ||370 g ||370 g |
|Water proof ||Yes (JIS Class 6) ||Yes (JIS Class 6) |
|Accessories ||Objective and eyepiece caps, case, strap ||Objective and eyepiece caps, case, strap |
|Prism coating ||BaK4 ||BaK4 |
|Lens coating ||Multi-coated ||Multi-coated |
|Twilight Factor ||14.1 ||14.1 |
|Close focus ||1.9 m ||1.9 m |
|Tripod Adaptor ||With adapter U – PENTAX Code No. 69552 ||With adapter U – PENTAX Code No. 69552 |
Please fill in the form below to ask a question.
Q1. How much do these binoculars weigh?
The Pentax UP 8x25 and 10x25 WP binoculars weigh approximately 300g / 10.58oz.