Bobs Knobs Celestron 8" SCT f/10 Collimation Knobs Secondary C8STD Bob's Knobs Celestron 8" SCT f/10 Collimation Knobs fit Celestron 8" (20cm) f/10 post-1980 SCT with factory silver or Allen Phillips collimation screws, with or without Fastar secondary with silver collimation screws (NexStar 8, Ultima 2000, C8 black, or gray, etc). Please note that this includes post-2000 orange tube but does not fit pre-1980 orange tube or majority of scopes with black Phillips factory collimation scews.
Trustpilot
3 weeks ago
2 days ago