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Explore Scientific G400 Series 8x42 Binoculars

Explore Scientific G400 Series 8x42 Binoculars

Regular price $199.99
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  • 8x Magnification
  • Waterproof
  • Twist-up Eyecups
  • 394ft field of view at 1000 yards
  • Case, strap, lens covers and cleaning cloth


The Explore Scientific G400 Series waterproof binoculars are excellent all-purpose binoculars for nature lovers, sports enthusiasts and adventurers of all types. Each G400 binocular model delivers bright images filled with crisp details through a combination of fully multi-coated lenses and Bak4 prisms with highly reflective dielectric coatings. The 8x42 binocular offers the widest field of view — 394 feet at 1000 yards — in the G400 series, making it an ideal choice for tracking moving targets like birds and small animals.

The 42mm aperture brings in lots of light without adding bulk and the 8x magnification delivers crucial details. It also has a close focus range of 2 meters, which is perfect for birdwatching and other activities where you want to get detailed views of near subjects. To help eyeglass wearers take full advantage of the brilliant views, the 8x42 binocular has a generous 17.5mm eye relief.

For all-weather performance, each G400 binocular has optical tubes that are purged with and inert gas and sealed to create an internal environment that is waterproof and impervious to fog and contamination from dirt and debris. Each also has a streamlined roof prism design and protective armor with textured sides for a solid grip.

Additional amenities include twist-up eyecups for comfortable viewing, diopter adjustment capability to ensure both eyes achieve proper focus and a tripod thread socket for attaching the device to a user-supplied tripod adapter and tripod when extra stability is desired. Each binocular comes with a case, strap, lens covers and a cleaning cloth.


Item Number ES-10843
Magnification 8mm
Lens Diameter 42mm
ED Glass No
Interpupillary Distance 56-73mm
Optical Type Roof; Bak4
Coating Fully Multi-coated
Prism Coating Sliver and Phase coating,High reflective-Dielectric coating
Body Color Black
FOV degrees 7.5
FOV 394ft (@ 1,000 yards)
Close focus 2m
Eye relief 17.5mm
Waterproof Yes
Eyecups System Twist-up



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CA Residents: Prop 65 WARNING(S)

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      30-Day Return Policy: no postage, no restocking fee, no worries!

      Astraeus Optics will cover shipping fees as well as any restocking fee that the manufacturer enforces.

      To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Custom made items are not eligible for returns or refunds.

      There are certain situations where only partial refunds are granted: (if applicable)

      • Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
      • Any item that is returned more than 30 days after delivery

      You can request a refund by Contacting Us.
      We will credit you for the total purchase price upon the receipt of your return. Products returned under this policy are eligible for a refund to the original method of payment.

      Defective Product Returns

      We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at support@astraeusoptics.com


      We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
      If more than 15 business days have passed since we’ve approved your return, please contact us at support@astraeusoptics.com

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