If you're an astronomy enthusiast or a professional astroimager seeking a reliable and user-friendly solution for precise focusing, the Focus Motor for Sct and EdgeHD telescopes is your ideal choice. This innovative product, designed by the reputable brand Celestron, offers electronic focusing for Celestron Schmidt-Cassegrain (SCT) and EdgeHD telescope optical tubes. With this high-quality focus motor installed, you can bring celestial objects into sharp, exact focus using your telescope's hand controller or a computer, eliminating the need to manually adjust the focuser knob. This feature is particularly beneficial for visual observers seeking precision, especially those with dexterity issues, and it's an indispensable accessory for astroimagers. The motorized focuser allows astroimagers to focus an image without needing to be physically near the telescope. In combination with computerized control of the mount and camera, this durable focus motor empowers you to gather data remotely from a backyard observatory, or even a telescope located hundreds of miles away. The focus motor is compatible with all SCTs from 6"" to 14"" in aperture produced since 2006, including the 8"" Rowe-Ackermann Schmidt Astrograph (RASA), the 36cm RASA, the 7"" Maksutov-Cassegrain, and all EdgeHD optical tubes. It can also be used with the 11"" RASA, with the Focuser Retrofit Kit for RASA 11. For power options, you can use a Celestron computerized mount, a computer Usb port, or an external 12V Dc power source. Celestron provides a free Focuser Utility program for computer control, and the Celestron Pwi software can also control the focus motor. For third-party focuser control software, an Ascom driver is required. In addition, the focus motor features a tethered design with port covers to protect the ports when not in use, ensuring durability and longevity. Please note, for 6"" Schmidt-Cassegrain telescopes, the Off-Axis Guider (#93648) cannot be used when the focus motor is installed due to mechanical interferences. In summary, the Focus Motor for SCT and EdgeHD telescopes is a specialized, targeted solution that enhances your stargazing and astroimaging experience by providing precise, remote focusing capabilities..