BOB'S KNOBS SCT C11" F/10 FASTAR KNOB SET C11FST
Item No. 788-10112
Manuf. No. Bob`s Knobs c11fst
Fits: All Celestron 11 inch (28 cm) f/10 SCT versions (metal or carbon fiber tube) with "Trifid" rotary cover Fastar secondary housing Knobs: Black plastic, 16 mm (5/8 inch) diameter Threads: Black anodized aluminum alloy
Note1: The factory dust cover will fit normally with Bob's Knobs installed.
Note2: Many Celestron 11 inch (28 cm) carbon fiber tube and metal tube SCTs manufactured from 2000 to 2005 have the Trifid rotary cover Fastar secondary housing. Do not use knobs for the Trifid Faster secondary on the flat secondary. The screws on these knobs are either too long or have the wrong threads.
Note3: The rotary secondary cover must remain open when knobs are installed. The cover is cosmetic only and will not affect operation of the telescope.