Bob's Knobs Celestron 11" SCT f/10 Metric Stainless Steel Knobs
Bob's Knobs Celestron 11" SCT f/10 Metric Stainless Steel Knobs
These Bob's Knob's Collimation knobs fit Celestron 11” (28 cm) f/10 SCTs with flat secondary housing and metric collimation screw threads. The knobs are made out of stainless steel (silver) which provides better corrosion protection in high humidity areas. They measure 12mm (1/2") in diameter.
Please make sure that knob threads match the factory screw threads before installing the stainless steel knobs. The factory dust cover will fit normally with the knobs installed.