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Swift 8.5x44mm BWCF Audubon Waterproof ED Binoculars 820ED w/ Free S&H

Swift 8.5x44 BWCF Audubon Waterproof BaK-4 Porro Prism ED Binoculars, Matte 820ED
$500.00 $629.00 Save 21%
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Code: SF-BI-Audubon-820ED
MPN: 820ED
UPC: 790401082108
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Swift 8.5x44mm BWCF Audubon Waterproof ED Binoculars 820ED Product Info

Swift 8.5x44mm BWCF Audubon Waterproof ED Binoculars 820ED is Swift's premium choice in porro prism birding binoculars. imageAn 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

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Swift 8.5x44mm BWCF Audubon Waterproof ED Binoculars 820ED Comments