Pentax UP 8x21 Binoculars - Black

The Pentax UP 8 x 21 Binoculars are very compact, lightweight, and feature a single piece frame that houses objectives, which allows for a synchronised interpupillary adjustment. 


  • BAK4 Porro prisms deliver edge-to-edge image sharpness with a 50° angle of view.
  • Aspherical optical elements  offer edge-to-edge image sharpness
  • Fully multicoated optics provide high transmission of light
  • Angular field of view: 6.2° to easily spot targets
  • Interpupillary and dioptre adjustments
  • 2.6mm exit pupil and 13mm eye relief
  • Single piece objectives' frame allows for a synchronized interpupillary adjustment
  • Contoured body provides a comfortable grip
  • Center focus knob offers an easy focusing
  • Sliding rubber eyecups
  • Colour: Black


Prism Type




Objective Lens Diameter

21 mm

Angle of View

6.2° (actual)

Field of View

108.5 m @ 1000 m

Minimum Focus Distance

9.2' / 2.8 m

Exit Pupil Diameter

2.6 mm

Eye Relief

13 mm

Interpupillary Adjustment

Not Specified by Manufacturer

Dioptric Correction

Not Specified by Manufacturer

Focus Type



11.0 x 8.3 x 4.8 cm


209.8 g

WARRANTY: 1 year

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