Swift Audubon binoculars are classic performers known for their terrific optical quality and construction. The roof prism design of the Swift Audubon 8.5x44 is a lightweight 23.4 ounces and comes with fully multi-coated optics for increased light transmissions. A long eye relief and twist-up-and-down eyecups guarantee comfortable use with or without eyeglasses. The Swift Audubon binocular is covered by the Swift Premier 25-year warranty.
Optical Features
Fully Multi-coated Lenses
Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
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.
Adjustable 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 center focus wheel.
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.
