Pentax binoculars UP 10x21, black

• 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

U-Series

These compact, inverted porro-prism models feature a durable dual-axis, single body design with synchronized 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 starperformer: 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

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.



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.



Other Features

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.

Optics
Type of prism	Porro prism
Prism	BaK4
Magnification	10×
Lens diameter	21 mm
Apparent field of view	5°
Field of view at 1000m	87 m
Focusing	Center focusing
Minimum focus distance	2,8 m
Twilight factor	14.5
Exit pupil	2.1 mm
Eye relief	9.5 mm
General info
Body material	Plastic
Weather sealing	None
Height (mm)	48
Width (mm)	110
Depth (mm)	83
Weight (g)	210
Package contents	Eyepiece Caps / Carrying bag / Carrying strap

(EN)