Description
- Bob's Knobs are made from black, oxide steel and are 12mm in diameter or ".
- The threads are black, oxide steel.
- To make up for the countersunk factory screws in the Hyperstar secondary, these knobs are taller tha
- With Bob's Knobs installed your factory dust cover will fit normally.
Bobs Knobs Celestron 8" SCT Hyperstar Collimation Knobs Secondary C8HYP Bob's Knobs Celestron 8" SCT f/10 Collimation Knobs fit Celestron 8" (20cm) f/10 with Hyperstar option and metric collimation screws.
