UP (x25)

PENTAX quality and clarity are within reach, at a price that’s within reach, too. These compact porro-prism models feature a dual-axis, single body design with synchronized eyepiece adjustment. Aspherical lens elements give you edge-to-edge sharpness. Clear images and clearly affordable.

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  • Fully-multi-coated optics assure maximum light transmission resulting in high quality viewing. Every surface of every element is fully coated minimizing internal glare and flare and giving a bright clear view.
  • Unique Uni-body design enhances durability by locking objective lenses in a single housing and synchronizing the eyepiece movement. This minimizes moving parts and assures these binoculars will function properly and clearly for years to come.
  • Aspherical lens elements, which are critical in compact binoculars, provide exceptional edge-to-edge sharpness. This assures that items on the edge of your field of view are just as sharp as those in the center.
  • Available in 8×25 and 10×25 magnifications.

UP (x25)

TypePorro prism, centre focusing (Linked-dual-axis)
Model No.61901 – UP 8×25
Model No.61902 – UP 10×25
Eye Relief15 mm
Objective Lens Diameter25 mm
Real Field of View6.2º
Field of view at 1000m108 m
Field of view at 1000 yards324 ft.
Exit Pupil3.1 mm
Relative Brightness9.6
Diopter AdjustmentCenter Pop-up
Diopter Adjustment Range±3m-1
Eye Width Adjustment Range56 to 72 mm / 2.2 to 2.8 inches
Focusing Range1.9 m to infinity / 6.2 ft. to Infinity
Eyepiece RingSlide Type (3 click stop)
Height & Width115 x 110 mm / 4.5 inches x 4.3 inches
Thickness56 mm / 2.2 inches
Body ColorBlack
Apparent Field of View47º
Weight300g / 10.6 oz
Lens Construction (Objective lens / Eyepiece lens)2 elements – 1 group / 3 elements – 2 groups

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