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Swift Sport Optics Binoculars
Swift 8.5 x 44 BWCF Audobon ED Water Proof & Rubber Armoured Binocular
Swift Sport Optics

Swift 8.5x44 BWCF Audobon ED, Water Proof & Rubber Armoured Porro Prism Binocular with 8.2 Degree Angle of View.

SKU: SW820ED MFR: 820ED
(4 reviews) 5
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$434.70
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About this item

Designed by birders for birders, the 820 Swift Audubon took over two years in the making with valuable input from leading birders across the country. The results? A birding binocular that exceeds all expectations. And still at an affordable price.

Summary of Customer Reviews

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(4)
Customers most agreed on the following attributes:
Pros:
Quality lenses (4) , Lightweight (2) , Strong construction (2) , Close focus (1) , Handling (1) , Waterproof (1) , Works well with glasses (1)
Cons:
Binocular case (1) , Heavy / bulky (1)
Best Uses:
Bird watching (4) , Wildlife viewing (3) , Hunting (1) , Plane spotting (1) , Sporting events/concerts (1)
Reviewer Profile:
Avid adventurer (2) , Casual/ recreational (2)

Key Features

  • Wide-angle, close-focusing
  • Ergonomically designed for ease of use
  • Waterproof, armored
  • 5 lens ocular system, Bak-4 prisms
  • ED Extra-low Dispersion optics

Technical Specs

Type of Prism Porro, BAK-4 prisms
Coating Multi-Coated Lens
Real Angular Field of View 8.2°
Field of View at 1000 Yards 430'
Exit Pupil 5 mm
Eye Relief 17 mm
Relative Brightness 25
Twilight Factor 19.3
Close Focus Distance (ft) 10'
Rubber Coated (Armored) Yes
Waterproof / Fogproof Yes
Dimensions 5.7" Height
Weight 25 oz.
Special Features ED Glass
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