The USM-2 is a compact device which allows you to connect your smartphone to an Opticron SDL, HDF or HR eyepiece.
It consists of a mounting plate with four clamps which can be securely adjusted to hold your phone in place. An additional self-centering clamp fixes the adapter over your eyepiece, holding it in the correct position.
Compatible with most smartphones that have a single front-facing camera lens and screen size up to 6".
* Smartphone adapter user guide