Bob's Knobs Celestron 9.25" SCT Fastar Collimation Knobs Secondary
Bob's Knobs Celestron 9.25" SCT Fastar Collimation Knobs Secondary
Bob's Knobs Celestron 9.25" SCT f/10 Collimation Knobs fit Celestron 9.25" (23.5 cm) f/10 SCT versions with "Trifid" Fastar secondary housing.
- Bob's Knobs are made from black plastic and are 9.5 mm in diameter or 3/8"
- The threads are stainless steel
- These knobs fit the Celestron 9.25" f/10 SCT with Fastar secondary. Recessed into the secondary housing are the black Phillips factory collimation screws. These versions may or may not have EdgeHD optics
- With Bob's Knobs installed your factory dust cover will fit normally
- When the knobs are installed, the rotary secondary cover must remain open. No worries though, the cover is cosmetic only and will not affect functionality of the scope
