Celestron NexYZ 3-Axis Universal Smartphone Adapter for Telescopes, Binoculars, & MoreWhat makes NexYZs patented design different from other smartphone adapters? The three axis adjustment. Most adapters rely on you placing your phone perfectly on the platform and only offer limited adjustment in two axes. But NexYZ gives you the power to place your phone on the platform, center it over the eyepiece with the X and Y knobs, and then move up or down over the eyepiece until you have the entire field of view in your shot. And even though