SKU: 29459119057

Pentax 8x21 U-Series UP Binocular (Black)

Sale price$5107.50 Regular price$5675.00
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Description

Pentax 8x21 U-Series UP Binocular (Black)Aspherical Lens Elements BAK4 Porro Prisms Fully Multicoated Optics Angle of View: 6. 2 Center Focusing Sliding Eyecups The compact and lightweight black 8x21 U Series UP Binocular combines aspherical optical elements and BAK4 Porro prisms to deliver edge to edge image sharpness with a 50 angle of view. The optical elements are also fully multicoated to provide a high transmission of light. With an 8x magnification and 21mm objectives, you obtain a

  • Aspherical Lens Elements
  • BAK4 Porro Prisms
  • Fully Multicoated Optics
  • Angle of View: 6.2°
  • Center Focusing
  • Sliding Eyecups

The compact and lightweight black 8x21 U-Series UP Binocular combines aspherical optical elements and BAK4 Porro prisms to deliver edge-to-edge image sharpness with a 50° angle of view. The optical elements are also fully multicoated to provide a high transmission of light. With an 8x magnification and 21mm objectives, you obtain a notable magnification, insignificant image jitter due to unsteady hands, and a compact form factor. You can easily spot your targets with a wide 6.2° angular field of view and quickly bring them into focus with a center focus wheel. In addition to observing distant scenes, birds and game, the minimum focus of 9.2' allows you to study in detail close objects like animal footprints, marks or landscape features. The binocular also features a 2.6mm exit pupil, a 13mm eye relief, an interpupillary and a diopter adjustments.

The binocular is very compact, lightweight, and features a single piece frame that houses objectives, which allows for a synchronized interpupillary adjustment. To accommodate glass wearers, the binocular offers sliding rubber eyecups. Also included are a carrying case, a neck strap, and eyepiece covers.

Optical Performance
  • BAK4 Porro prisms
  • Aspherical optical elements offer edge-to-edge image sharpness
  • Fully multicoated optics
  • Angular field of view: 6.2°
  • Interpupillary adjustment
  • Diopter adjustment
Construction Details
  • 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
UPC: 027075288782
Prism Type Porro
Magnification 8x
Objective Lens Diameter 21mm
Angle of View 6.2° (actual)
Field-of-View 326' @ 1000 yd / 108.23 m @ 1000 m
Minimum Focus Distance 9.24' / 2.82 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 Center
Dimensions 4.33 x 3.26 x 1.9" / 11.00 x 8.28 x 4.83  cm
Weight 7.4 oz / 210 g
Packaging Info
Package Weight 0.7 lb
Box Dimensions (LxWxH) 4.6 x 3.8 x 2.3"
In the Box
Pentax 8x21 U-Series UP Binocular (Black)
  • Neck Strap
  • Carrying Case
  • 2 x Eyepiece Covers
  • Limited Lifetime Warranty
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29459119057

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KA
Lexington, US
★★★★★ 5
Blue ball, my dog likes blue.
Just a ball right? Evidently not! My dog won’t chase an orange chuck it ball or the glow in the dark ball- only the blue one 🤷🏼‍♀️
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Reviewed in the United States on May 9, 2025
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Baker-s
Waukegan, US
★★★★★ 3
I wanted a blue ball
It's great. It just wasn't blue.
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Reviewed in the United States on January 5, 2026
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Jr
West Palm Beach, US
★★★★★ 5
its a great ball
works well
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Reviewed in the United States on July 8, 2025
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Amazon Customer
Los Angeles, US
★★★★★ 5
Just right for a small dog
Pattern Name: Half Ears, Size: 25 Count (Pack of 1)
Perfect for my 9 lb mini schnauzer. It's her #1 favorite treat. Keeps her busy for a long time (a few hours). Great quality. Bag lasts a long time. Have purchased multiple times.
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Reviewed in the United States on May 28, 2026
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Karla Browner
Los Angeles, US
★★★★★ 5
Great product and value for the money
Pattern Name: Half Ears, Size: 4 Pound (Pack of 1)
Dog loves these. I only feed her natural food and treats. These are very healthy. She's a strong healthy 2 year old puppy. Will be buying again soon. It is a great product for the money. They are chewed up in minutes because she loves them. They do have a bit of an odor but it's not overbearing.
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Reviewed in the United States on April 2, 2026

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