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