Optec has developed a robust low-profile 3-inch focuser for telescope installations where back-focus is scarce. With the width of 1¼ inches, the TCF-Leo provides a unique focusing solution for telescopes with limited flange-to-focus distances. Included withe every TCF- Leo is the proven FocusLynx control system which can be expanded to provide control for a second focuser. The FocusLynx system includes optional 802.11 WiFi and Hand Control accessories.The TCF-Leo was designed to fit between the lock and focus knobs of a Celestron EdgeHD C-11 telescope OTA. For owners of the EdgeHD Celestron C1400 telescopes, Optec offers a set of replacement knobs for the original lock knobs which provide clearance for the TCF-Leo.This focuser uses standard Optec interfaces on both the telescope and camera side making nearly any telescope imaging system to be configured.