Amazon.com : Telescope Phone Adapter, Multipurpose Telescope Smartphone Adapter Mount, Universal Telescope Phone Mount Adapter for Adults-Fits Almost All Optical Equipment and Smartphones on The Market : Electronics
Phone Adapter Pro for Binoculars, Telescopes, Microscopes & Spotting S
Celestron
Amazon.com: LAKWAR Telescope Phone Adapter, Universal Cell Phone Mount Compatible Binoculars, Monocular, Microscope, Spotting Scope, Telescope, Smartphone Holder Clip Bracket Fits Almost of Mobile Phones : Electronics