Bob's Knobs Adjusting Screws for Celestron SCT 9.25″ f/10 Standard are the perfect upgrade for anyone who wants to accurately adjust their Celestron Schmidt-Cassegrain telescope without risk of damage. The original secondary mirror screws are replaced with three stainless steel thumbscrews with a knurled, grippy finish. This allows you to collimate safely even in the dark or with gloves on.
With these Bob's Knobs, you adjust the secondary mirror with more control and finesse, which is immediately noticeable in the sharpness and contrast of your observations. Planets show more detail, stars are better focused and deep-sky objects look brighter. The increased stability also means that collimation is maintained longer, even during transport or temperature changes.
The screws are designed specifically for Celestron 9.25″ f/10 SCT models and fit without modification. Bob's Knobs is regarded worldwide as the standard for reliable, safe and ergonomic collimation solutions.
Application
Perfect for owners of Celestron SCT 9.25″ f/10 telescopes who often observe on the road or practice astrophotography. These thumbscrews mean you never have to use a screwdriver again, eliminating the risk of scratching or misalignment. Ideal for those who want consistently sharp, centered images.
Specifications
Material: stainless steel
Number of screws: 3
Compatibility: Celestron SCT 9.25″ f/10 Standard
Type: Adjusting screws for secondary mirror
Design: thumb screws with knurled grip
Tools required: No
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