Clamp this Sunwayfoto BA-43 Mobile Phone to Binocular Adapter Ring onto your optic to capture the view through your eyepiece—and to add new mounting options for your smartphone. The adapter ring comes with a thin steel plate with heat-resistant adhesive. Place the plate on the back of your phone, attach the adapter ring to one eyepiece of your binoculars, let the ring adhere magnetically to the steel plate, and line up the other eyepiece with your phone's camera. Now you can take photos and video through the binoculars. You'll find that holding the binoculars steady is easier than holding just the phone. In addition, having the steel plate on the back makes your phone compatible with all kinds of car and other magnetic mounts.
The adjustable ring is made of CNC-machined anodized aluminum and fits 1.5-1.8" diameter eyepieces. The metal plate measures 3 x 2.2"