The MicroFocus for Celestron C8 Telescope from JMI Telescopes is a push-on 2-speed manual focus mechanism that attaches to the shaft of an SCT focuser knob (or the knob itself) for precise focusing. It includes separate knobs for coarse and fine adjustments with a numeric dial indicator for improved accuracy and repeatability. Mounting is easy and requires no drilling or tapping.
CPC style MicroFocus
Orange Ring (scope housing) at base of focus knob
JMI Telescopes MRFC8 Specs
Celestron early C5 (dual fork arm), C8, C8+, C8-S, C8-SGT, Classic 8, Celestar 8, CGE 800, G-8, Great Polaris C8, NexStar 8 GPS, Polaris C8, Powerstar 8, Super C8, Super C8+, Super Polaris C8, Ultima 8, Ultima 2000 telescopes