BARSKA Blackhawk 9×63 Binoculars (Green Lens)
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Specifications:9x, Field of View (ft@1000yds/m@1000m) =273/91, Prism Glass: BK-7, Exit Pupil (mm): 6.3, Close Focus (ft/m)26.24/8.0, Eye Relief 23.0mm References :Chinese astronomy – Wikipedia the free encyclopediaWhen You Wish Upon a Star Now You Can Call It … – New York TimesBBC – Learning Zone Class Clips – Cellarius Star Map 1660 …Whirlpool Galaxy – [...]
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