The Swift Audubon 8.5x44 Porro Prism is a high-performance binocular. 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.
Fully Multi-coated Lenses
Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
Optimize light transmission.
Generally offer a rich depth of field, wide field of view, and three-dimensional image.
Provides a secure, non-slip grip.
Multi-Position 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 right eyepiece.
Optics are sealed with O-rings to prevent moisture, dust, and debris from getting inside the binocular.
Barrels are filled with nitrogen gas to inhibit internal fogging.