About this product
Part Number: 61801
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.
Easily recognised by the dual-axis and classic inverted porro prism design, even our entry model has all the features of a star performer: aspherical lens elements for edge-to-edge sharpness, multicoated lenses for great light transmission. Whether you use it for indoor or outdoor events, you will be pleasantly surprised by the clarity and sharpness of the image... and surprisingly affordable too.
- New fully multi-coated optics
- Inverted porro prism design
- Aspherical eyepiece lens elements
- Dual-axis, single body design with synchronised IPD adjustment
- Protective rubber housing
- Pull-up eyecups
- Light weight and compact
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.
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.
Helicoid four-stop eyepiece rings that permit fine adjustment for maximum viewing comfort.
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
|Product Codes||Black: 61801|
|Type||Porro Compact||Porro Compact|
|Objective Lens Diameter||21 mm||21 mm|
|Field of View at 1000m||108 m||87 m|
|Exit pupil aperture||2.6 mm||2.1 mm|
|Eye Relief||9.5 mm||9.5 mm|
|Height||48 mm||48 mm|
|Width||110 mm||110 mm|
|Depth||83 mm||83 mm|
|Weight||210 g||210 g|
|Accessories||Objective and eyepiece caps, case, strap||Objective and eyepiece caps, case, strap|
|Lens coating||New fully multi-coated optics||New fully multi-coated optics|
|Close focus||2.8 m||2.8 m|
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Q1. How much do these binoculars weigh?
The Pentax UP 8x21 and 10x21 binoculars weigh approximately 210g / 7.41oz.