Knobs: Black oxide steel, 12 mm (1/2”) diameter Threads: Black oxide steel
Notes:
The
factory dust cover will usually fit properly with Bob’s Knobs
installed. However, some very early versions of this design have very
little clearance between the factory dust cover and the secondary
housing. To make room for the knobs, contact us for a free set of
spacers that attach to the ring around the corrector plate to move the
dust cover slightly away from the secondary assembly. These spacers are
not needed for most versions of this telescope.
All versions of the Celestron C6 SCT have collimation screws with metric threads.
