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Questions & Answers

FAQ

What is the benefit of the dual-axis, single-body design of the 8-16x21 UP Zoom Porro Prism Binocular?

The dual-axis, single-body design with synchronized eyepiece adjustment ensures ease of use and stability. It also reduces the number of moving parts, enhancing the binocular's durability.

What does 'fully multi-coated optics' mean?

Fully multi-coated optics means that every surface of every element of the binocular is fully coated. This ensures maximum light transmission, minimizes internal glare and flare, and delivers a bright, clear view.

What does 'aspherical lens elements' mean?

Aspherical lens elements in the binoculars provide exceptional edge-to-edge sharpness. This means that objects at the periphery of your field of view are as clear and sharp as those at the center.

What is included in the bundle with the 8-16x21 UP Zoom Porro Prism Binocular?

The bundle with the 8-16x21 UP Zoom Porro Prism Binocular includes a portable telescoping stool/chair, a harness, and a cleaning cloth.

What environments are the 8-16x21 UP Zoom Porro Prism Binocular suitable for?

The 8-16x21 UP Zoom Porro Prism Binocular is suitable for a variety of environments, from outdoor settings like nature trails to indoor settings like theaters.

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

    8-10x

  • 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

    10.9 oz (309.01g)

2 Accessories for Pentax 8-16x21 UP Zoom Porro Prism Binocular, 5.0-3.0 Deg Angle of View, Green, Bundle with Portable Telescoping Stool/Chair, Harness, Cleaning Cloth

  • All Accessories (2)
  • Cleaning Accessories (1)
  • Brackets & Mounts (1)

About Pentax UP 8-16x21

Enhance your viewing experience with the 8-16x21 UP Zoom Porro Prism Binocular, a compact and durable device that is perfect for a variety of environments, from the great outdoors to theater settings. Crafted by PENTAX, a trusted name in optics, this binocular delivers exceptional clarity and quality at an affordable price.

The binocular boasts a dual-axis, single-body design with synchronized eyepiece adjustment, ensuring ease of use and stability. Its aspherical lens elements provide edge-to-edge sharpness, ensuring that objects at the periphery of your field of view are as clear and sharp as those at the center.

The fully multi-coated optics of this binocular ensure maximum light transmission, resulting in high-quality viewing. Every surface of every element is fully coated, effectively minimizing internal glare and flare, and delivering a bright, clear view.

The unique Uni-body design of the 8-16x21 UP Zoom Porro Prism Binocular enhances its durability by locking the objective lenses in a single housing and synchronizing the eyepiece movement. This design reduces the number of moving parts, ensuring that the binocular will function properly and clearly for years to come.

The 8-16x21 UP Zoom Porro Prism Binocular comes in a vibrant green color, adding a touch of personal style to your viewing experience. This bundle also includes a portable telescoping stool/chair, a harness, and a cleaning cloth, providing you with everything you need for a comfortable and convenient viewing experience.

Whether you're a nature enthusiast, a theater-goer, or a sports fan, the 8-16x21 UP Zoom Porro Prism Binocular is a reliable choice for high-quality, clear, and sharp viewing.

Pentax UP 8-16x21 Features

  • Fully-multi-coated optics ensure maximum light transmission, resulting in high quality viewing
  • Unique Uni-body design enhances durability by locking objective lenses
  • Aspherical lens elements, which are critical in compact binoculars, provide edge-to-edge sharpness

Key Features

  • Compact and durable 8-16x21 UP Zoom Porro Prism Binocular, perfect for outdoor and indoor viewing
  • High-quality, fully multi-coated optics for maximum light transmission and clear viewing
  • Unique Uni-body design for enhanced durability and synchronized eyepiece movement
  • Aspherical lens elements ensure edge-to-edge sharpness for a comprehensive field of view
  • Vibrant green color for a touch of personal style

What's in the box:

  • Pentax 8-16x21 UP Zoom Porro Prism Binocular (Green)
  • Neck Strap
  • Carrying Case
  • 2x Eyepiece Lens Cap
  • Pentax 25 Year Limited Warranty
  • Bundle Includes:
  • Aries Portable Telescoping Stool/Chair (Solid Gray)
  • Pentax Shock Absorbing Binocular Harness
  • Adorama Microfiber Cleaning Cloth (Small/5.8x5.8")