I am selling my model year 2000 C8 ota that has Bob's Knobs installed. I am also including a Just-Cheney Insulated dewshield, a $70 value. The C8 has the GP rail for mounting and is, of course, Fastar compatible. This C8 has excellent mechanics with absolutely no focus shift. I also believe the optics are excellent although I have not star tested the scope.
Email me for the link to my images taken with this scope. My first ad wouldn't post because I included that link.
$450 + shipping
The image of M13, below, was taken using this ota and a Starlight Xpress MX7C one-shot color camera.