Telescope Collimation Tools
Fits all Meade 8 inch (20 cm) f/10 SCT versions with six screws on the secondary housing (LX90, LX200). The inner screws are for collimation. NOTE: Earlier Meade 8 inch (20 cm) telescopes have three screws on the secondary housing. These scopes require different knobs. Do not use knobs for the 6-screw secondary on the 3-screw secondary. The screws on these knobs are too long.
Primary mirror springs as supplied by the factory can sag from the weight of the mirror cell. Our stainless steel replacement springs are stronger and provide adequate support to maintain primary mirror collimation. Fits 8", 10" and 12" LightBridge.
Fits all Meade 8 inch (20 cm) f/10 SCT versions with three screws on the secondary housing (2080, LX10, LX50, LX90, LX100, LX200).
Collimation Knobs for Meade 8" f/6.3 SCT
Collimation Knobs for Meade 10" f/6.3 SCT
Collimation Knobs for Meade 10" f/10 SCT
Collimation Knobs for Meade 12" SCT
These knobs will fit all C8 models made prior to 2005, and all 2005 and later models EXCEPT those with black Phillips factory collimation screws. The black-screw model requires C8 metric knobs. Check that our screw threads match the factory screw threads before installing. Fits: Celestron 8 inch (20 cm) f/10 SCT with factory Allen, Phillips, or headless set-style 6-32 collimation screws, with or without Fastar compatible secondary (C8 orange, black, or gray; Ultima 2000; NexStar 8).
Collimation Knobs for Celestron 9.25" SCT
Knobs for Celestron 11 inch (28 cm) f/10 SCT w/flat secondary housing.
Collimation Knobs for Meade 16" SCT
Collimation Knobs for Celestron 5" SCT
Collimation Knobs for Takahashi TSC-225 SCT
Collimation Knobs for Intes MK-65
Collimation Knobs for Intes MK-66
Collimation Knobs for Intes MK-67
Knobs for Celestron 11 inch (28 cm) f/10 SCT w/"Trifid" Fastar™ secondary housing.
Collimation Knobs for Celestron 14" SCT (non-Nexstar) with Allen Screws
Collimation Knobs for Orion Argonaut 150. No Tools Needed!It’s easy ... just grab a Bob’s Knob and turn.
Collimation Knobs for Celestron 14" SCT (non-Nexstar). No Tools Needed! It's easy ... just grab a Bob's Knob and turn. You can even do it while looking through the eyepiece on most scopes. And 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.