View Full Version here: : CPC800 - can you measure yours for me

30-07-2017, 01:06 PM

I need to know the external diameter, and the diameter of the secondary mirror holder, of a Celestron C8 (ideally a CPC-800) so I can have a bahtinov mask cut.

I don't have the scope with me at present, so I can't measure it myself.

I'd be grateful if someone could measure their scope and post the numbers here.

Thanks in advance,


30-07-2017, 08:47 PM
Dave, I believe the hyperstar versions have a larger secondary assembly, so it depends on which type you've got.