• Servo motor with microprocessor.
• Sharp, precise focusing.
• Focus via tele’s hand controller.
• Low, medium, high focus speeds.
• Indexed focus position.

The Focus Motor for SCT & EdgeHD provides electronic focusing for Celestron Schmidt-Cassegrain (SCT) and EdgeHD tele optical tubes. With the focus motor installed, you can bring celestial objects into sharp, precise focus using your tele’s hand controller or a computer instead of using the focuser knob. A focus motor is great for visual observers who want to dial in exact focus (especially those with dexterity issues) and a must-have accessory for astroimagers. With a motorized focuser installed, an astroimager no longer needs to be physically near the tele to focus an image. Combined with computerized control of the and camera, the focus motor enables the imager to gather data remotely from a backyard observatory, or even a tele located hundreds of miles away. As an added bonus, port covers protect the ports while not in use, and the covers cannot be lost due to the tethered design. Compatible Optical Tubes The focus motor is compatible with all SCTs from 6” to 14” in aperture that have been produced since the year 2006. It is not compatible with 5” SCTs or older models. It is compatible with the 8” Rowe-Ackermann Schmidt Astrograph (RASA),  the 36cm RASA, the 7” Maksutov-Cassegrain, and all the EdgeHD optical tubes except for the 9.25".  It can also be used with the 11” RASA, but requires the Focuser Retrofit Kit for RASA 11. For 6” Schmidt-Cassegrain teles only, there are some accessories that cannot be used when the focus motor is installed due to mechanical interferences. Specifically, the Off-Axis Guider (#93648) and older 2” Mirror Diagonal (#93519, now discontinued) cannot be used. Check Compatibility  Power Options There are three options for powering your Celestron Focus Motor: When using a Celestron computerized , you can power and control the focus motor through the using the supplied AUX cable. This allows control from the ’s hand controller (NexStar+ or StarSense) or a computer. If you are not using a Celestron , you can power and control the focus motor from a computer USB port. You will need a user supplied USB A-to-B cable. You may also opt to use an external 12V DC power source which plugs into the motor’s power jack. Compatible Software Celestron offers a free Focuser Utility program for computer control. The Celestron PWI software can also control the focus motor. To use third-party focuser control software, an ASCOM driver is needed.