Pentax 8-16x21 UP Zoom Porro Prism Binocular, 5.0-3.0 Deg Angle of View, Black
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Pentax 8-16x21 UP Series Zoom Weather Resistant Porro Prism Binocular with 5.0-3.0 Degree Angle of View, Black

SKU: PXUP81621B MFR: 61961
(4)5 questions, 18 answers
$136.00
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Key Features

  • Experience versatile viewing with 8-16x zoom binoculars, perfect for birding and travel.
  • Enjoy bright, clear images with these Pentax binoculars, featuring quality 21mm objective lenses.
  • Weather-resistant binoculars designed to withstand outdoor conditions, ensuring long-lasting use.
  • The compact, lightweight design of these porro prism binoculars makes them easy to carry on any adventure.
  • Achieve sharp focus as close as 9.9 feet with these center focus Pentax zoom binoculars.
  • These binoculars offer a wide field of view, enhancing your observation during sporting events.
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Special Order?Estimated to Ship: 08/17/2025
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Questions & Answers

JAMES A. S : Does it come with a case ?ANDREW R : What's in the box: Pentax UP 8-16x21 Zoom Compact Binocular Neck Strap Carry Case 2x Eyepiece Covers Pentax Lifetime Limited Warranty
Shopper : Why Did You Choose This?JANE B : I’m using this binocular for field archery target shooting.HANK B : Past experienceChristopher B : We own a pair of these binoculars and like them very much. This pair is a gift for our new son-in-law, who has borrowed ours and really enjoyed them.

Reviews about this item

Review Summary

2020-08-27T09:33:25

Rated 4 out of 5

Great value in a 8x-16x zoom binocular

Great value, bright and sharp images. I especially like the long zoom range (8x-16X) in a compact package. I would recommend this product to anyone wanting a flexible binocular in this price range.

NARK N.

2018-05-29T08:45:39

Rated 5 out of 5

Great Next Step

These are the next step up from the 8x close focus(18") set I purchased previously. I wanted a little more magnification and these extend it to from 8x to 16x. Very good for Florida bird watching from the lanai. They are a great set of binoculars at a fair price.

Gary M.

2017-05-04T09:27:51

Rated 4 out of 5

Very nice Binocular from Pentax

Very nice Binocular from Pentax. Small and lightweight, with weatherproofing, good for everyday use.

James M.

2017-03-14T09:55:29

Rated 5 out of 5

I'm glad that I chose this item and it has exceeded my expectations. Nice pair of binoculars.

The zoom option is great. Also, I like the light feel when in use.

David C.

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Pentax UP 8-16x21 Specifications

  • Prism Type

    Porro

  • Magnification

    8-16x

  • Objective Lens Diameter

    21mm

  • Angle of View

    8x: 5 deg. (actual)
    16x: 3 deg. (actual)

  • Field-of-View

    8x: 261' at 1000 yd / 86.65m at 1000m
    16x: 156' at 1000 yd / 51.79m at 1000m

  • Minimum Focus Distance

    9.9' / 3.02m

  • Exit Pupil Diameter

    8x: 2.6mm
    16x: 1.3mm

  • Eye Relief

    8x: 14mm
    16x: 11mm

  • Focus Type

    Center

  • Tripod Mount

    Yes

  • Dimensions

    4.37 x 4.37 x 2.1" / 11.10 x 11.10 x 5.33cm

  • Weight

    10.9oz / 309.01g

  • UPC Code

    027075288881

3 Accessories for Pentax 8-16x21 UP Series Zoom Weather Resistant Porro Prism Binocular with 5.0-3.0 Degree Angle of View, Black

  • All Accessories (3)
  • Cleaning Accessories (1)
  • Brackets & Mounts (1)
  • Tripods (1)
Adorama Microfiber Cleaning Cloth, Small, 5.8x5.8"
Adorama Microfiber Cleaning Cloth, Small, 5.8x5.8"
$1.79
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About Pentax UP 8-16x21

FEATURED REVIEWS

Great Next Step

By Gary M.

These are the next step up from the 8x close focus(18") set I purchased previously. I wanted a little more magnification and these extend it to from 8x to 16x. Very good for Florida bird watching from the lanai. They are a great set of binoculars at a fair price.

I'm glad that I chose this item and it has exceeded my expectations. Nice pair of binoculars.

By David C.

The zoom option is great. Also, I like the light feel when in use.

How can you enhance your outdoor experiences With the 8-16x21 UP Series Zoom Weather Resistant Porro Prism Binocular, you can bring the world closer to you in stunning clarity. This compact and durable binocular, designed by the renowned brand Pentax, is perfect for a range of activities, from birdwatching in the wilderness to enjoying a theater performance in the city.

This model boasts a unique Uni-body design that locks the objective lenses in a single housing, enhancing its durability and reliability. The synchronized eyepiece adjustment, part of its dual-axis, single-body design, ensures easy and precise control, making it a versatile tool for any viewing situation.

The binocular features fully-multi-coated optics, a feature that maximizes light transmission for high-quality viewing. Every surface of every element is fully coated, effectively minimizing internal glare and flare. This results in bright, clear views, even in low light conditions.

One of the standout features of this binocular is its aspherical lens elements. These are crucial in compact binoculars, as they provide exceptional edge-to-edge sharpness. Whether you're focusing on a bird perched on a distant tree or a performer on a stage, you can be sure that objects at the edge of your field of view are just as sharp as those in the center.

The 8-16x21 UP Series Zoom Weather Resistant Porro Prism Binocular also offers a flexible zoom range of 8x-16X, allowing you to adjust the magnification to suit your needs. Whether you're scanning a distant landscape or focusing on a close-up detail, this binocular gives you the flexibility to see it all.

Finally, this model is weather resistant, making it a reliable companion for outdoor enthusiasts. Whether you're hiking, camping, or birdwatching, you can trust this binocular to perform in various weather conditions.

Available in a sleek black color, the 8-16x21 UP Series Zoom Weather Resistant Porro Prism Binocular combines functionality, durability, and style, making it a valuable addition to your outdoor gear.

Pentax UP 8-16x21 Features

  • Weather-resistant Porro Prism Binocular, perfect for outdoor activities like birdwatching and camping
  • Compact and durable design with a unique Uni-body structure that enhances longevity
  • Fully-multi-coated optics for maximum light transmission and high-quality viewing
  • Aspherical lens elements provide exceptional edge-to-edge sharpness
  • Flexible 8x-16X zoom range for adaptable viewing in various distances and conditions
  • Sleek black color, combining functionality and style in one compact package

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Key Features

  • Experience versatile viewing with 8-16x zoom binoculars, perfect for birding and travel.
  • Enjoy bright, clear images with these Pentax binoculars, featuring quality 21mm objective lenses.
  • Weather-resistant binoculars designed to withstand outdoor conditions, ensuring long-lasting use.
  • The compact, lightweight design of these porro prism binoculars makes them easy to carry on any adventure.
  • Achieve sharp focus as close as 9.9 feet with these center focus Pentax zoom binoculars.
  • These binoculars offer a wide field of view, enhancing your observation during sporting events.

What's in the box:

  • Pentax UP 8-16x21 Zoom Compact Binocular
  • Neck Strap
  • Carry Case
  • 2x Eyepiece Covers
  • Pentax Lifetime Limited Warranty