Check the listing for details. Fine Focus Knob ELITE VERSION for Celestron 8" and 9.25" SCT Telescope. Condition: New. Listed at 11.99 USD. Introducing the Premier Celestron Focusing Solution: ELITE Fine Focus Knob Upgrade your stargazing experience with the ELITE Fine Focus Knob, specifically designed for Celestron 8", 9.25", 6", and 5" SCT telescopes. This dual-color, honeycomb-patterned knob provides exceptional precision for planetary and stellar observations. The 70 mm (2.76 in) diameter ELITE Fine Focus Knob fits seamlessly over your stock focuser, offering fine detail focusing and rapid coarse focusing simultaneously. Focusing capabilities: Stock focus knob: 5 mm turn = 26° focus changeFine focus knob: 5 mm turn = 8° focus changeCompatibility: Celestron 8" SCTCelestron 9.25" SCTCelestron 6" and 5" telescopes (choose "Smaller 6se sized Orange & Black" option)Included: 1 ELITE Fine Focusing Knob in your choice of color combinations. Constructed with high-quality 3D printing technology, these brand-new focus knobs are proudly made in the USA. At Sci-tastic, we prioritize accuracy and functionality. Unlike competing sellers we have meticulously adjusted the model's dimensions to achieve an impeccable fit that prevents it from slipping off during upward slewing—a problem we initially encountered with the downloaded model, similar to the issues faced by our competitors. I own the scope so I made sure it fits tight and looks great! By choosing Sci-tastic, you not only avoid the pitfalls of improperly sized focus knobs offered by other sellers, but you also support ethical practices in the industry. We are the only seller on eBay selling telescope mods to credit the model creator and provide free access to the designs for those with 3D printers. Download and 3D print it yourself for free! *Fine Focus Knob for Celestron SCT Telescope by jggall01 is licensed under the Creative Commons - Attribution license. Thingiverse thing:2011552. Upgrade your Celestron telescope with the ELITE Fine Focus Knob and experience the difference precision focusing can make.