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Bob's Knobs Celestron 6" SCT Collimation Knobs Secondary - Black Oxide - C6BO


Bob's Knobs Celestron 6" SCT Secondary Collimation Knobs
Black Oxide

With Bob's Knobs, you won't need tools to make collimation adjustments to your telescope! It's easy, just grab a Bob's Knob and turn. You can even collimate while looking through the eyepiece on most telescopes. What's more, you'll never drop that pesky little Allen wrench or screwdriver in the grass again. Installation is a snap with included instructions, and you can undo the modification at any time.

  • Bob's Knobs Celestron 6" SCT f/10 Collimation Knobs fit Celestron 6" (15 cm) f/10 SCT (C6GT, C6S, C6SE)
  • Bob's Knobs are made from black oxide steel and are 12 mm in diameter or 1/2"
  • The threads are black, oxide steel
  • The factory dust cover will typically fit with Bob's Knobs installed. Some early versions of this design have little clearance between the secondary housing and the factory dust cover which can make it difficult in making room for the knobs. Bob's Knobs will provide a free set of spacers for those versions. The spacers will attach to the ring around the corrector plate to move the dust cover slightly away from the secondary assembly
  • Collimation screws with metric threads are on all versions of the Celestron C6 SCT