Celestron Nex YZ 3-Axis Universal Smartphone Adapter For Binoculars / Scopes Capture still images and videos with virtually any smartphone through virtually any optical device with Celestron's NexYZ 3-Axis Universal Smartphone Adapter. The design allows it to be used on spotting scope, binocular, and telescope eyepieces from 30mm to 60mmincluding standard 1.25" and larger 2" telescope eyepieces. Celestron includes two rings that allow the adapter to be mounted on smaller optics, such as microscopes. The frame is made of sturdy and lightweight aluminum and the body of a polymer material that makes it able to support larger and heavier smartphones without failing. A clamping system holds the adapter securely on the eyepiece and locks in place, while an adjustment system allows for precise phone camera alignment on three X-Y-Z axes. Take Stills and Video through Eyepiece Use for Telescopes, Binoculars, Spotters Microscope and Smaller Optic Adapters Easy Spring-Clamp Installation with Lock Fits any Eyepiece from 30mm to 60mm Compatible with a Wide Variety of Phones Aluminum Frame and Polymer Body Contains: 1*Adapter