Bob's Knobs Collimation Knobs for Rare Celestron C5 f/6 SCT

These Bob's Knobs are made for the rare Celestron C5 f/6 SCT Secondary with standard collimation screw threads.

Part #: C5f6 Fits: Celestron 5” (13 cm) f/6 SCT only!  Will NOT fit the Celestron 5” f/10 SCT.

• Knobs: Black plastic, 13 mm (1/2”) diameter
• Threads: Black anodized aluminum alloy

• These knobs will fit only the rare C5 f/6 telescope. If your secondary looks like this (see photo), you have the f/6 version.
• The factory dust cover will fit normally with Bob’s Knobs installed.