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.