Celestron Focus Motor for SCT and EdgeHD Telescopes #94155

The Focus Motor for SCT & EdgeHD provides electronic focusing for Celestron Schmidt-Cassegrain (SCT) and EdgeHD telescope optical tubes. With the focus motor installed, you can bring celestial objects into sharp, precise focus using your telescopes 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 telescope to focus an image. Combined with computerized control of the mount and camera, the focus motor enables the imager to gather data remotely from a backyard observatory, or even a telescope 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 TubesThe 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 all the EdgeHD optical tubes except for the 9.25", the 8 Rowe-Ackermann Schmidt Astrograph (RASA), the 36cm RASA, and the 7 Maksutov-Cassegrain. It can also be used with the 11 RASA, but requires the Focuser Retrofit Kit for RASA 11.For 6 Schmidt-Cassegrain telescopes 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.