Swift Audubon 8.5x44 ED Porro Prism Binocular

Our Price: $469.00
List Price: $599.95
You Save: $130.95 (21%)
Swift Audubon 8.5x44 ED Porro Prism Binocular
Magnification 8.5x
Objective Lens Diameter 44 mm
Field of View 430 feet/1000 yards
Eye Relief 16 mm
Close Focus 10 feet
Weight TBD
Dimensions (HxW) 5.5 x 7.5 inches
Weatherproofing Waterproof/Fogproof


  • Eyepiece caps
  • Objective lens caps
  • Neck strap
  • Case

Swift takes everything you love about their Audubon 8.5x44 Porro Prism binocular and enhances its perfomance with extra low dispersion (ED) glass. With a wide field of view, close focus, long eye relief, and a light weight, Swift has included all the features you desire. On a cloudy or rainy day, you will appreciate the increased light transmission from the fully multi-coated optics and the waterproof protection. The Swift Audubon binocular is covered by the Swift Premier 25-year warranty.

Optical Features
Extra-low Dispersion (ED) Glass Enhances resolution, color, and contrast.
Fully Multi-coated Lenses Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
BaK-4 Prisms Optimize light transmission.
Construction Features
Porro Prisms Generally offer a rich depth of field, wide field of view, and three-dimensional image.
Rubber Armoring Provides a secure, non-slip grip.
Adjustable 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.
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.