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Item#: N82E16884184001

PENTAX 8-16x21 UCF Zoom II Binoculars

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  • Black rubber housing
  • Inverted porro-prism desig
  • High-quality BaK4 prisms

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the PENTAX 8-16x21 UCF Zoom II


8-16x21 UCF Zoom II


Binocular Type: Porro prism, Linked-dual-axis, Center focusing, Center zoom ring, Center diopter adjustment knob

Lens Construction: Objective Lens: 2 elements in 1 group Eyepiece Lens: 4 elements in 3 groups

Coating: Lens: Multi-coating Prism: Coating

Magnification: 8 to 16X

Objective Lens Diameter: 21mm

Real Field of View: 5.0 degrees (8X) to 3.0 degrees (16X)

Apparent Field of View: 40 degrees (8X) to 48 degrees (16X)

Field Of View At 1000 Meters: 87m (8X) to 52m (16X)

Field of View at 1000 Yards: 261 ft. (8X) to 156 ft. (16X)

Exit Pupil: 2.6mm (8X) to 1.3mm (16X)

Eye Relief: 14mm (8X) to 11mm (16X)

Prism: Porro

Relative Brightness: 6.7 (8X) to 1.7 (16X)

Diopter Adjustment Range: +/- 4 m -1 (8X)

Diopter Adjustment: Center knob (pop up)

Eye Width Adjustment Range: 56 to 73.5mm

Focusing Range: 3m to infinity

Eyepiece Ring: Helicoid type

Body Color: Black

Height Width: 55mm x 111mm

Thickness: 111mm

Weight: 280g


Central fingertip control includes, focus, locking diopter and zoom control

Black rubber housing protects against dust and scratches

Revolutionary dual-axis, single body housing with synchronized eyepiece adjustment to assure correct optical alignment for comfortable viewing

Fast and easy adjusting center focusing for handling ease

Helicoid style eyepiece rings for quick adjustment of eye relief

Fully multi-coated optical eliminate harmful UV rays while improving light transmission and contrast with no flare or glare.

Inverted porro-prism design results in compact, light-weight body

High-quality BaK4 prisms for maximum light transmission and illumination
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
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