Swift Ultra Lite 8x42 Waterproof Birding Binoculars 929Swift 7x50 SeaHawk Series Waterproof Binoculars
Swift 8.5x44mm BWCF Audubon Birder Waterproof Binoculars
Availability: In Stock
USD 203.00
Specifications for Swift 8.5x44 mm BWCF Audubon Birding Waterproof Binocular #820:
| 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: | 1.72 lb (780 g) |
Features of Swift 8.5x44mm BWCF Audubon Waterproof Binoculars #820:
- Broad front distance between objectives gives phenomenal depth perception
- BaK-4 Porro prisms for a wide viewing field and a broad depth of field
- 5-Lens eyepiece system
Package Contents:
- Swift 8.5x44mm BWCF Audubon Waterproof Binoculars #820
- Case
- Strap
- Caps
- Lifetime Warranty