The Starlight Instruments SCT MicroFocuser provides the smoothest control for fine focusing. Two focus knobs allows for standard or 1/10th-speed focusing, making the MicroFocuser extremely accurate. Excellent for both imaging or visual observing, this focuser is precision-machined and anodized black with a brass fine-focus knob.
The SCT MicroFocuser is easily installed in place of the original focus knob on most Celestron 9.25" SCTs. A built-in stop prevents the primary mirror from detaching from the focuser.