Orion SteadyPix Quick Smartphone Telescope Photo Adapter Take smartphone pictures of the view through your telescope with this affordable adapter Quick and easy self-centering eyepiece clamp provides fast installation Provides a stable platform for your smartphone to yield stable, clearly focused snapshots Compatible with even the biggest modern smartphones as large as 3-3/4" wide Twist-lock eyepiece clamp compatible with telescope, binocular, and microscope eyepieces measuring 25-45mm in diameter