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

$25 OpticsPlanet e-gift card Free Gift with Purchase! FREE $25 OpticsPlanet e-gift card $25.00 value with the purchase of Swift 8.5x44mm BWCF Audubon Birder Waterproof Binoculars. To claim your free gift, check out the Buy Together & Save section below!
Swift 8.5x44 BWCF Audubon Birder Waterproof Porro Prism Binoculars, Black - 820
$364.00 $469.00 Save 22%
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Code: SF-BI-Audubon-820
MPN: 820
UPC: 790401008209
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Swift 8.5x44mm BWCF Audubon Birder Waterproof Binoculars Product Info

Swift 8.5x44mm BWCF Audubon Waterproof Binoculars 820 is Swift's premium choice in porro prism birding binoculars. imageAn 8.5x power binocular is a great compromise between the classic debate of magnification, size and exit pupil diameter. 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.

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

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