Bob's Knobs for Celestron C14 f/11 Secondary with Factory Headless Set-Style Collimation Screws
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Collimate your Catadioptric or Newtonian reflector style telescopes without tools!
It's easy...just grab a Bob's Knob collimation thumbscrew and turn. You can even do it while looking through the eyepiece on most scopes. These thumbscrews are also much easier to use with gloves on. And perhaps most importantly, you'll never drop that pesky little Allen wrench or screwdriver into the grass again. Installation is a snap with the included instructions, and you can undo the modification at any time.
Part: C14set
Fits: Celestron 14” (36 cm) f/11 SCT versions with factory headless set-style (Allen or slotted) collimation screws
Knobs: Black plastic, 16 mm (5/8”) diameter
Threads: Stainless steel
Notes:
- These knobs will also fit the Celestron 14” SCT with “Trifid” Fastar secondary and headless set-style collimation screws (see fourth photo). The rotary secondary cover must remain open when knobs are installed. The cover is cosmetic only and will not affect operation of the telescope.
- The factory dust cover will fit normally with Bob’s Knobs installed.
- Do not adjust the center screw if present; this is the secondary pivot screw.
Other Information
- Country of Manufacture: United States
Collimate your Catadioptric or Newtonian reflector style telescopes without tools!
It's easy...just grab a Bob's Knob collimation thumbscrew and turn. You can even do it while looking through the eyepiece on most scopes. These thumbscrews are also much easier to use with gloves on. And perhaps most importantly, you'll never drop that pesky little Allen wrench or screwdriver into the grass again. Installation is a snap with the included instructions, and you can undo the modification at any time.
Part: C14set
Fits: Celestron 14” (36 cm) f/11 SCT versions with factory headless set-style (Allen or slotted) collimation screws
Knobs: Black plastic, 16 mm (5/8”) diameter
Threads: Stainless steel
Notes:
- These knobs will also fit the Celestron 14” SCT with “Trifid” Fastar secondary and headless set-style collimation screws (see fourth photo). The rotary secondary cover must remain open when knobs are installed. The cover is cosmetic only and will not affect operation of the telescope.
- The factory dust cover will fit normally with Bob’s Knobs installed.
- Do not adjust the center screw if present; this is the secondary pivot screw.
Collimate your Catadioptric or Newtonian reflector style telescopes without tools!
It's easy...just grab a Bob's Knob collimation thumbscrew and turn. You can even do it while looking through the eyepiece on most scopes. These thumbscrews are also much easier to use with gloves on. And perhaps most importantly, you'll never drop that pesky little Allen wrench or screwdriver into the grass again. Installation is a snap with the included instructions, and you can undo the modification at any time.
Part: C14set
Fits: Celestron 14” (36 cm) f/11 SCT versions with factory headless set-style (Allen or slotted) collimation screws
Knobs: Black plastic, 16 mm (5/8”) diameter
Threads: Stainless steel
Notes:
- These knobs will also fit the Celestron 14” SCT with “Trifid” Fastar secondary and headless set-style collimation screws (see fourth photo). The rotary secondary cover must remain open when knobs are installed. The cover is cosmetic only and will not affect operation of the telescope.
- The factory dust cover will fit normally with Bob’s Knobs installed.
- Do not adjust the center screw if present; this is the secondary pivot screw.
Other Information
- Country of Manufacture: United States
Bob's Knobs for Celestron C14 f/11 Secondary with Factory Headless Set-Style Collimation Screws