The Kowa TSN-AR25BD adapter ringconverts a spotting scope or one tube of a binocular into a telephoto lens for use with compatible smartphones. Those smartphones are the Samsung Galaxy S4, iPhone 4, 4S, and 5. In order to attach your smartphone to a spotting scope or a binocular, simply screw this ring onto a compatible digiscoping holder and push the ring onto a compatible spotting scope eyepiece or a binocular eyepiece.
Compatability
For use with Kowa BD25 binoculars
Requires a TSN-GA4S Digiscoping Holder for Samsung Galaxy S4
Requires a TSN-IP4S Digiscoping Holder for iPhone 4 and 4S, and a TSN-IP5 Digiscoping Holder for iPhone 5