描述
- The threads are black, anodized aluminum alloy. Before installing the knobs, make sure the knob thre
- With Bob's Knobs installed your factory dust cover will fit normally.
- In order to clear the secondary housing lip the knobs include a set of long spacers.
- Manufactured Celestron 9.25" SCTs before 2006 have standard collimation screw threads.
Bobs Knobs Celestron 9.25 SCT f/10 Collimation Knobs Standard Secondary C925STD Bob's Knobs Celestron 9.25" SCT f/10 Collimation Knobs fit Celestron 9.25" (23.5cm) f/10 SCT with standard collimation screw threads. (Not for CPC 925 or EdgeHD) *Bob's Knobs are made from black plastic and are 16mm in diameter or 5/8".