Pentax UP 8-16x21 Zoom Binoculars

Popular Travel Binoculars

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Item #PENT173-1

  • List Price:
  • $119.00
  • Your Price:
  • $99.00
  • You Save:
  • $20.00 USD17% + FREE Shipping
  • Zoom from 8x to 16x with these compact binoculars
  • 21mm Aspherical Lens Elements provide edge-to-edge sharpness
  • Fully Multi-coated Optics produce crisp, clear views
  • Close focus distance of just 9 feet
  • Available in Black, Brown or Green
Questions? Let our experts help!
  • Description

    The Pentax 8-16x21 UP is a multi-functional wizard! In one compact and lightweight binocular you have the power to observe at 8x to 16x magnification by simply turning the centrally located zoom wheel. Other important elements include aspherical lens elements for edge-to-edge sharpness, BaK4 prisms and multi-coated lenses to enhance brightness & contrast.  The Pentax UP features a rugged inverted porro prism dual axis single body design with synchronized IPD adjustments.  Use these compact zoom binoculars at 8x to enjoy the widest field of view, and then zoom up to 16x to zero in on the details!

    New Fully-multi-coated optics

    Fully multi-coated lenses serve the essential purpose of maximizing the amount of light passing through a lens, thereby prevent flare and ghosting from interfering with your view. PENTAX applies multiple layers of coatings to every surface of every element and prism in the full Sport Optics line-up. These fully-multi-coated optics assure the maximum light transmission resulting in a clear, crisp view of the world.


    • Fully Multi-coated Optics
    • BAK4 Porro Prisms
    • Water, Fog, & Shock Proof
    • Pull Up Eyecups
    • Polycarbonate Housing
    • Aspherical Lens Elements

    Supplier SKU

    61961 - Black
    61962 - Brown
    61963 - Green

    What's Included

    Pentax UP 8-16x21 Binoculars, Carry Case with Strap, Neck Strap, Lens Caps

  • Dimensions & Specifications


    8x - 16x

    Lens Diameter:


    Angular Field of View:

    5° at 8x

    Field of View:

    261 ft @ 1000 yards

    Exit Pupil:

    2.6mm at 8x

    Eye Relief:

    14mm at 8x



    Lens Coating:

    Fully Multi-Coated



    Hydrophobic Coating:




    Minimum Focus:

    9.8 feet


    4.4 inches


    10.9 ounces


    Pentax Limited Lifetime

  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    Default manufacturer warranty.

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

Ask The Experts

Have questions about an item or need advice on selecting the right optic? Our team of experts is here to help! Avid outdoor enthusiasts themselves, they've tested gear in the field and can provide personalized product recommendations for just about any activity, from birding and hunting to sports and travel.

You can reach our Customer Support line at 1-800-246-6285. We're open 8 a.m. to 8 p.m. Central Time, Monday through Friday and 9 a.m. to 4 p.m. on Saturday.

After hours? Drop us an email at We'll get back to you as soon as possible, usually within 1 business day.