Celestron Focus Motor — for SCT, EdgeHD and RASA telescopes The Celestron Focus Motor brings precise, motorised focusing to Celestron Schmidt-Cassegrain, EdgeHD and RASA telescopes, so you can focus remotely and use autofocus routines without touching the telescope.
Manufacturer model: Celestron Focus Motor for SCT and EdgeHD · Specifications checked against manufacturer data on 2026-11-03
The Celestron Focus Motor brings precise, motorised focusing to Celestron Schmidt-Cassegrain, EdgeHD and RASA telescopes, so you can focus remotely and use autofocus routines without touching the telescope.
A DC servo motor with 1000 steps per revolution drives the telescope's own focus knob at three speeds. It connects to the mount's AUX port or directly to a computer over USB, and works with the Celestron Focuser Utility (Windows), CPWI and ASCOM.
Celestron lists the Focus Motor for Schmidt-Cassegrain telescopes made after 2006 (except the 5-inch SCT), EdgeHD and RASA telescopes, and the 7-inch Maksutov-Cassegrain.
| Motor | DC servo |
|---|---|
| Resolution | 1000 steps per revolution |
| Speeds | 8, 32 and 128°/s |
| Interfaces | Celestron AUX; USB |
| Power via USB | Minimum 900 mA |
| External power | 12 V DC, 1 A; 5.5 × 2.1 mm centre-positive |
| Software | Celestron Focuser Utility (Windows), CPWI, ASCOM |
| Weight | 0.42 kg |
Celestron Focus Motor product page
Not for 5-inch SCT or pre-2006 SCTs. Dimensions and operating temperature not published.
| Motor type | DC servo |
|---|---|
| Steps per revolution | 1000 |
| Speeds deg (s) | 8; 32; 128 |
| Interfaces | Celestron AUX; USB |
| USB min current ma | 900 |
| External power | 12 V DC 1 A, 5.5 x 2.1 mm centre-positive |
| Compatibility | SCT after 2006 except 5-inch; EdgeHD; RASA; 7-inch Mak |
Data sheet
Celestron Focus Motor — for SCT, EdgeHD and RASA telescopes The Celestron Focus Motor brings precise, motorised focusing to Celestron Schmidt-Cassegrain, EdgeHD and RASA telescopes, so you can focus remotely and use autofocus routines without touching the telescope.
Manufacturer model: Celestron Focus Motor for SCT and EdgeHD · Specifications checked against manufacturer data on 2026-11-03
