The Swarovski BTX dual eyepiece has been on the market for a few years now and exceeded my every expectation.
Gear
Swarovski BTX Eyepiece ReviewThe Swarovski BTX dual eyepiece has been on the market for a few years now and exceeded my every expectation.
Gear
Swarovski BTX Dual Eyepiece OverviewSwarovski's BTX Dual eye-piece spotting scope is the most significant optics invention since the laser rangefinder.