UP (x21)

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.
  • The UP 10×21 and 8×21 models are offered in unique, attractive colour options that match your personal style.

UP (x21)

TypePorro prism, centre focusing (Linked-dual-axis)
Model No.61801 – UP 8×21 – Black
Model No.61802 – UP 8×21 – Navy
Model No.61803 – UP 8×21 – Pink
Model No.61804 – UP 10×21 – Black
Model No.61805 – UP 10×21 – Navy
Model No.61806 – UP 10×21 – Pink
Eye Relief13 mm
Objective Lens Diameter21 mm
Real Field of View6.2º
Field of view at 1000m108 m
Field of view at 1000 yards324 ft.
Exit Pupil2.6 mm
Relative Brightness6.7
Diopter AdjustmentRight Center
Diopter Adjustment Range±4m-1
Eye Width Adjustment Range58 to 72 mm / 2.3 to 2.8 inches
Focusing Range2.8 m to infinity / 9.2 ft. to Infinity
Eyepiece RingSlide Type (2 click stop)
Height & Width83 x 110 mm / 3.2 inches x 4.3 inches
Thickness48 mm / 1.9 inches
Body ColorBlack
Apparent Field of View47º
Weight210g / 7.4 oz.
Lens Construction (Objective lens / Eyepiece lens)2 elements – 1 group / 3 elements – 2 groups

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