Swarovski's BTX Dual eye-piece spotting scope is the most significant optics invention since the laser rangefinder.
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Swarovski BTX Dual Eyepiece OverviewSwarovski's BTX Dual eye-piece spotting scope is the most significant optics invention since the laser rangefinder.
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Swarovski Spotting Scopes ATX & STX ReviewSwarovski's revolutionary ATX and STX modular spotting scopes have changed the optics landscape forever.