Nikon 8x40mm Action Extreme ATB Binoculars

4.6 Stars

70 Ratings

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Nikon 8x40mm Action Extreme ATB Binoculars has a rating of 4.6 stars based on 70 reviews.

Item #NIKO047-1

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  • Nikon 8x40 Action Extreme binoculars are rugged and waterproof
  • Not too big, not too small. Great for birding, nature viewing, concerts.
  • Bright, multi-coated optics for sharp, crisp views
  • Adjustable, long eye relief to accommodate eyeglass wearers
  • Wide 8.2 degree apparent field of view
  • Rubber armored body for a good grip, even when wet
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  • Description

    Nikon Action Extreme 8x40 ATB Binoculars offer just about everything you could want when looking for that perfect pair of mid-sized binoculars.  With world famous Nikon Eco-Glass optics, a nitrogen-purged waterproof and fogproof body, a wide 8.2 degree apparent field of view, and adjustable twist-up eyecups, we think you will agree that Action Extreme binoculars have a lot of bang for the buck.

    Nikon optics for bright, sharp images

    The high quality Eco-Glass lens elements of all Nikon Action Extreme binoculars are responsibly made without lead or arsenic to help protect our environment.  All air-to-glass surfaces are finished with multi-layered anti-reflective coatings to deliver optimum brightness, high contrast, true color rendition and flare-free viewing in most lighting conditions. BaK-4 high index prisms, made with Barium Crown glass, are also part of the Action Extreme design, for sharp images with less light loss than most BK-7 prisms.

    All Terrain Binocular for worry-free use

    The Nikon 8x40 Action Extreme Binoculars have an ATB designation, which is an acronym for "All Terrain Binocular". In a nutshell, this means your Action Extreme binoculars can go just about anywhere, and perform flawlessly under a wide variety of weather conditions. The Action Extreme's ergonomic body, with its durable and protective rubber-armored coating, is Nitrogen-purged to remove all traces of moisture from its interior, and then the binoculars are o-ring sealed to prevent moisture re-entry. 

    One of the most annoying things that can happen when observing with binoculars is fogging. Interior fogging of the main objectives happens when minute amounts of moisture enters the system, causing fine water droplets to collect on the glass. Fogging occurs when you are observing in high humidity, or when your binoculars are subjected to rapid temperature changes. This is similar to what happens to your bathroom mirror when you take a hot shower. However, because Nikon Action Extreme Binoculars have been purged of moisture and then sealed, they will not fog internally, and that’s a good thing, since fogging is not just an annoyance, it can cause fungus to start growing inside your binoculars. Even if you feel waterproofing is not necessary for your particular hobby and/or lifestyle, this one result of waterproofing—rendering your binoculars fogproof—should make you a fan of this feature.

    Adjustable eyecups and easy central focus

    The Nikon 8x40 Action Extreme Binoculars feature unique click-stop, twist out eyecups that offer long eye relief—17.2mm— and the ability to vary that eye relief so the user can find the perfect eyecup location for their needs. There's also a diopter control to correct for normal right/left eye vision imbalance.

    Focusing is a piece of cake, too. The oversized, ribbed focus knob is ergonomically placed right in the center of the binocular bridge so that your hands will find it instinctively. Sensitive to the slightest adjustments in either direction, you'll be able to find perfect focus in a snap. Close focus for the 8x40 Nikon Action Extreme model is 16.4 feet.

    Take a load off

    The Nikon 8x40 Action Extreme Binoculars are not particularly heavy (30.1 ounces) and they are comfortable to hand-hold for longer periods of time due to their medium 8x magnification, but its nice to know you can mount them on a tripod if you so desire. Arm fatigue creeps up on the best of us, and so does image shake. Mounting these Action Extreme binoculars on a tripod removes both of these annoyances in a flash. Just unscrew the “Nikon” beauty cap located in the center front of the bridge to reveal a 1/4-20 threaded port. Tripod adapters are inexpensive and all but the most exotic have a 1/4-20 post that fits perfectly into the port. Now mount your tripod adapter on any photographic tripod, adjust the tripod to a comfortable viewing height, and you are ready to observe for hours on end, or share your views with others more easily.


    Supplier SKU


    Shipping Restrictions

    Available for shipment to the USA and Canada only.

    What's Included

    • Nikon 8x40 Action Extreme ATB Binoculars
    • Soft case
    • Neck strap
    • Eyepiece lens cap
    • Objective lens caps

  • Dimensions & Specifications

    Focusing System Central




    Objective Diameter


    Angular Field of View (Real)

    8.2 degrees

    Angular Field of View (Apparent)

    59.7 degrees

    Field of View at 1000 yards

    430 feet

    Close Focus Distance

    16.4 feet

    Exit Pupil


    Relative Brightness


    Eye Relief


    Size (Length x Width)

    5.4 x 7.4 inches


    30.1 ounces

    Interpupillary Distance







    Nikon No-Fault Repair/Replacement Policy
  • 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.

  • 4.6 Stars

    70 Reviews

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