Established in 1995, Guanghi Optical Instrument Co., Ltd. is a joint stock China swift binocular manufactuer and designer engaged in the manufacturing and marketing of a wide variety of Optical Instrument and products. Our products are widely applied in the education of students, research in lab, entertainment and science explore. During more than one decade's development, our products have awarded the CE certificate. We also have our own quality control system and customer' service system. So we can accept the order against customers' samples, specifying designs, specifications, and packaging requirements. We also prepared to accept the OEM and custom swift binoculars with customer's own trade marks or brand names.

Wide-angle, close-focusing
Ergonomically designed for ease of use
Waterproof, armored
5 lens ocular system, Bak-4 prisms
Designed based on specifications gleaned from a Swift survey of the world's leading ornithologists, the Swift Audubon binoculars have become famous worldwide for superior performance and dependability. The 820 Swift Audubon has been rated "best buy" by Cornell Laboratory of Ornithology, Better View Desired, and the English publication, British Birds. They are equipped with a 5-lens ocular system, BaK4 prisms, fully multi-coated optics and pop and lock eyecups adding comfort for eyeglass wearers. The Swift Audubon produces crisp, high definition images to the outer edges of the wide field and close focuses to under 10 ft. The rubber-coated body is made of magnesium to reduce weight and is sealed to make the binoculars waterproof. Padded hard case and comfortable broad woven neck strap included.

The finest BaK4 prisms
New full multi-coating technology
Additional layers to provide greater light transmission than standard multi-coatings
Long eye-relief
Close focusing
The Ultra Lite is the first and only binocular to incorporate two different types of rubber to improve durability and shock-absorption. The hard exterior rubber protects the binoculars against bumps and bangs while the soft interior rubber and patented ergonomic design gives the user added comfort and reduces user fatigue. The soft interior also provides a sure grip in any weather condition, wet or dry. This same technology is used to create a non-slip focusing knob on these binoculars. The Ultra Lite binoculars offer premium optics and feature the finest BaK4 prisms, new full multi-coating technology with additional layers to provide greater light transmission than standard multi-coatings, long eye-relief, close focusing and durable waterproof construction.

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