iOptron Electric Focuser for Richey-Chrétien OTA

iOptron Electric Focuser for Richey-Chrétien OTA

£179.00✓ 2 year warranty


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About this product

Model:  iop_ef_8451
Part Number:  8451

This iOptron Electric Focuser (eFocuser) is designed for iOptron Photron™ 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. 

Currently supported mounts (with firmware version V161101 or later):

  • CEM25/CEM25P/CEM25EC
  • CEM60/CEM60EC
  • iEQ30 Pro & iEQ45 Pro



  • 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 compliancy coming soon...


iOptron Photron TM RC Scope (6",8" and 10")
Driving trainStepper motor with synchronous belt
ConnectionVia iOptron PORT on the mount
ControliOptron Go2Nova hand controller
Focuser SpeedLow, medium, high
Dimensions54mm x 56mm x 82mm

Downloads / Manuals

The following manuals and downloads are available for this product:

EFocuser 8491 Manual

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