Advantages of RC Telescopes compared to MAC and SCT This iOptron Electric Focuser (eFocuser) is designed for iOptron PhotronTM Ritchey-Chrétien (RC) telescope dual-speed focuser. Now you can focus the telescope by pushing a hand controller button. it is compatible to most iOptron later version mounts.

This Electric Focuser will also fit other RC scopes such as GSO, TPO (from OPT), Astro-Tech (from Astronomics), and Orion. It may work with other RC scopes use the similar dual-speed focuser.

Features Whisper quiet operation Powerful stepper motor Zero backlash Plug into iOptron Port with no external power source needed 3 speed control by a compatible iOptron hand controller ASCOM compliant   Supported Mounts CEM25/CEM25P/CEM25EC CEM40/CEM40EC CEM60/CEM60EC CEM120/CEM120EC/CEM120EC2 GEM45/GEM45EC iEQ30 Pro iEQ45 Pro