Swift Audubon 8.5x44mm HP Roof Binoculars

Popular Birdwatching Binoculars

Item #SWSO037-1

  • Your Price:
  • $651.50
  • + FREE Shipping
  • Lightweight, waterproof, fog-proof, shockproof binoculars
  • 8.5x magnification and 336-ft. field of view
  • Fully multi-coated optics and BaK4 prisms
  • 5-lens ocular system
  • Pop-and-lock eyecups add comfort for eyeglass wearers
  • Close focuses to under 9 ft.
Questions? Let our experts help!
  • Description

    Rated a best buy by Cornell Laboratory of Ornithology, Better View Desired, and the British Birds magazine, the Swift Premier HP Audubon 8.5x44 Binoculars are equipped with a five-lens ocular system, BaK4 prisms, and fully multi-coated optics. The pop-and-lock eyecups give added comfort for eyeglass wearers. The Audubon produces crisp, high-definition images to the outer edges of the wide 336-foot field and close focuses to under 9 feet.


    Swift Sport Optics has added a roof prism version of the world famous Audubon binocular.  Using the same renowned 8.5x magnification with 44mm objective lenses formula, bak-4 prisms, twist-up eyecups, and lightweight rubber armored body as the porro prism Audubons.  This model offers fully multi-coated optics for high resolution viewing, close focus to under 9 feet, and a comfortable 19mm eye relief.  This model also incorporates a left diopter adjustment operated from the center focus knob for a more convenient quick focus.



    Swift Sport Optics 8.5x44 HP Roof Binoculars feature:

    • 5-Lens Ocular System
    • bak-4 Prisms
    • Fully Multi Coated Optics
    • Center Focus Diopter Adjustment
    • Waterproof, Fogproof and Shock Proof
    • SwiftPremier Twenty Five Year Warranty

    The rubber-coated body is made of magnesium to reduce weight and is sealed to make the binoculars waterproof. They are also fog-proof and shockproof, suitable for all weather conditions, and weigh just 24 ounces. The Audubon comes with a neoprene neck strap, ocular and objective lens covers, microfiber lens cloth, hard leather storage case, and the SwiftPremier 25-year warranty.

    For more than 80 years, Swift Sport Optics has provided high-quality, innovative optical products to help generations of birders, outdoorsmen, students, and educators magnify and observe the world around them. Swift opened for business during the economic boom of the 1920s. Throughout the years, Swift has continued to grow and design innovative products to ensure longevity and prove that it is a brand to trust.

    Swift continues to combine the time-honored features and quality that its customers have grown to expect and trust, with new products that feature the latest technology. Swift is dedicated to keeping its customers ahead of the trends and providing the generations of Swift supporters with continued quality and new growth. In turn, Swift has designed the finest, most practical binoculars, spotting scopes, riflescopes, and pistol scopes within the capability of modern technology.

    Supplier SKU


    Shipping Restrictions

    Ships to most international destinations, APOs, and FPOs.

    What's Included

    Binoculars, Neoprene neck strap, Ocular and objective lens covers, Microfiber lens cloth, Hard leather storage case

  • Dimensions & Specifications

    Angular Field of View

    6.4 Degrees

    Binoculars Series

    Swift Premier HP Binoculars



    Close Focusing Distance

    9 ft.

    Exit Pupil

    5.18 mm

    Eye Relief

    19 mm


    Twist Up



    Field of View at 1000 Yards

    336 ft.

    Focus Type

    Center Focus

    Interpupillary Distance


    Lens Coating

    Fully Multi Coated



    Magnification Code


    Objective Lens Diameter

    44 mm

    Objective Lens Size Code


    Prism Glass


    Prism Type

    Roof Prism Binoculars


    Full Size Binoculars

    Tripod Adaptable


    Twilight Factor





    23.4 oz.

    Marketplace Type Code

    Full Size

  • 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.

Customer Q&A

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  • Q1: Are these binoculars considered fogproof?

    A: Yes, Swift Audubon 8.5x44 828 HCF binoculars are fog-proof as well as waterproof.

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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 info@binocularsplus.com. We'll get back to you as soon as possible, usually within 1 business day.