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Product Discontinued by Manufacturer
Swift 8.5x44mm BWCF Audubon Waterproof ED Binoculars 820ED has been discontinued by Swift and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Sport Optics, Binoculars yourself to try and find the perfect replacement for you!
Product Info for Swift 8.5x44mm BWCF Audubon Waterproof ED Binoculars 820ED
Swift 8.5x44mm BWCF Audubon Waterproof ED Binoculars 820ED is Swift's premium choice in porro prism birding binoculars. An 8.5x power is a great compromise between the classic debate of magnification, size and exit pupil diameter. With Audubon 8.5X44 BWCF 820ED Binoculars 820 ED, you'll have an exit pupil diameter of 5.1mm, great enough for viewing in nearly all birding situations, and a very wide 8.2? angle of view for an 8.5 magnification binocular. This Swift 8.5x44mm ED model is equipped with extra-low dispersion glass for extremely high contrast, resolution and sharpness across the entire viewing area.
Specifications for Swift 8.5x44mm BWCF Audubon Waterproof ED Binoculars 820-ED:
| Prism Type: | Porro |
| Magnification: | 8.5x |
| Objective Diameter: | 44mm |
| Angle of View: | 8.2° |
| Field-of-View (@ 1000 Yds): | 420' (139 m at 1000 m) |
| Minimum Focus Distance: | 10.0' (3.0 m) |
| Exit Pupil Diameter: | 5.2mm |
| Eye Relief: | 17mm |
| Relative Brightness: | 26.8 |
| Twilight Factor: | 19.3 |
| Focus Type: | Center |
| Weatherproofing: | Waterproof & fogproof |
| Tripod Socket: | Yes |
| Dimensions: | 7.6 x 5.5 x 2.8" (194 x 139 x 71mm) WxHxD |
| Weight: | 1.75 lb (795 g) |
Features of Swift 8.5x44mm BWCF Audubon Waterproof ED Binoculars #820ED:
- Broad front distance between objectives gives phenomenal depth perception
- BaK-4 Porro prisms
- 5-Lens eyepiece system
- Superlative specifications for birding enthusiasts
Package Contents:
- Swift Audobon Binoculars - 8.5x44mm BWCF Waterproof ED Binoculars 820-ED
- Case
- Strap
- Caps
- Lifetime Warranty
Swift 8.5x44mm BWCF Audubon Waterproof ED Binoculars 820ED
Swift 8.5x44mm BWCF Audubon Waterproof ED Binoculars 820ED Unavailable & Discontinued Models
List of Unorderable Models
- Swift 8.5x44 BWCF Audubon Waterproof BaK-4 Porro Prism ED Binoculars, Matte 820ED , MPN: 820ED , UPC: 790401082018 , Code: SF-BI-Audubon-820ED