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Pentax - 8x21 UCF R Binoculars


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Availability: In stock


Manufactured by: Pentax


The PENTAX UCF R  series is tough, light and compact. With a strong and rugged unibody coated in tough black rubber, its streamlined shape slips easily into and out of bags and pockets. Notwithstanding their size, the PENTAX UCF R range of binoculars are all-rounders capable of performing in multidudinous situations. 

PENTAX UCF R binoculars provide excellent image quality and viewing comfort. They feature an advanced dual-axis eye-distance adjustment system with high-refraction BaK4 glass prisms and multi-coated optical elements. Asperical lens elements are built in to the eyepiece optics. All of this and they are also sleek and stylish. 

The PENTAX UCF R series binoculars are a sensible choice for a broad range of applications, such as wildlife, sports and theatrical observations.


  • Maintain a sure grip with protective rubber housing that also protects the internal mechanisms.
  • Enjoy easier viewing in any lighting condition with high-refraction BaK4 glass prisms that allow more light to be transmitted.
  • Take your binoculars anywhere with a lightweight and compact inverted porro-prism design.
  • Alignment is assured with a revolutionary dual-axis eye-distance adjustment system.
  • View your subjects with improved light transmission with fully-multi-coated optical elements that eliminate harmful ultraviolet rays and glare.
  • View your subject with better edge-to-edge sharpness with aspherical eyepiece lens elements.







op/updated 05/23/14 Mark S

Additional Information

Name Pentax - 8x21 UCF R Binoculars
Manufacturer Pentax
Model 62209
Design Porro prism, center focusing (linked-dual-axis)
Diameter 21mm
Dimensions 3.2 x 4.3
Diopter Adjustment Range +/- 4m -1
Exit Pupil 2.6mm
Eye Relief 13mm
Eye Width Adjustment Range 2.3 - 2.8
Eyepiece Ring Slide Type
Field of View - Apparent 50 degrees
Field of View - Real 6.2 degrees
Focusing Range 9.2 ft. - infinity
Included Accessories Eyepiece Lens Cap, Case, Strap
Lens Type 3 elements in 3 groups
Linear Field of View (@1000 m) 108m
Linear Field of View (@1000 yds) 324 ft.
Magnification 8X
Objective lenses 2 elements in 1 group
Optical Coatings Fully multi-coated
Prisms Porro
Relative Brightness 6.7
Thickness 1.9
Water Resistance no