SWAROVSKI OPTIK iPhone Digiscoping Adapter Ring for EL 42, EL 50, or EL Range Binoculars

The iPhone Digiscoping Adapter Ring from Swarovski connects your PA Series iPhone Adapter to the EL 42, EL 50, or EL Range Binocular Eyepiece. This adapter ring, together with the PA adapter, allows you to use one tube of select binoculars as a high power telephoto lens. Simply thread this ring to your PA Adapter and slide it over a binocular's eyepiece. This ring is made of aluminum and has a rim knurl which provides a good grip.