Brunton Eterna 8x45 Roof Prism Binocular

Sale Price: $349.99
List Price: $530.00
You Save: $180.01 (33%)
Brunton Eterna 8x45 Roof Prism Binocular
Magnification 8x
Objective Lens Diameter 45 mm
Field of View 315 feet/1000 yards
Eye Relief 20.0 mm
Close Focus 8.0 feet
Weight 28.0 ounces
Dimensions (HxW) 6.0 x 5.1 inches
Weatherproofing Waterproof/Fogproof


  • Neck strap
  • BinoGlove cover
  • Select this Eterna and take advantage of the extra light-gathering ability of the 45mm objective lenses. Fully multi-coated optics optimize the Eterna's light transmission for bright views on cloudy days. The Eterna is waterproof, fogproof, and built to last. Brunton covers the Eterna with a limited lifetime warranty

    Optical Features
    Fully Multi-coated Lenses Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. Emerald Fire™ coatings.
    Phase Correction Enhances resolution and contrast through roof prisms.
    BaK-4 Prisms Optimize light transmission.
    Construction Features
    Roof Prisms Appreciated for a streamlined shape and durability.
    Rubber Armoring Provides a secure, non-slip grip.
    Multi-position Eyecups Twist up and down for comfortable viewing with or without eyeglasses.
    Center Focus Wheel Adjusts both binocular barrels at the same time.
    Right Eye Diopter Adjusts for differences in a user's eyes. Located by the right eyepiece
    Tripod Adaptable Can be mounted using standard ¼-inch threading. Adapter sold separately.
    Design Features
    Waterproof Optics are sealed with O-rings to prevent moisture, dust, and debris from getting inside the binocular.
    Fogproof Barrels are filled with nitrogen gas to inhibit internal fogging.