Adapter ring Swarovski AR-B for Binoculars/BTX

This Swarovski AR-B for Binoculars/BTX adapter ring is specially designed to be used together with the Swarovski VPA Variable smartphone adapter.

The adapter ring is suitable for Swarovski's CL, SLC and EL binoculars and BTX telescopes. To place the adapter ring, first screw on the smartphone adapter, then simply place the Swarovski AR-B adapter ring over the eyecup of your binoculars or BTX telescope.