Hi Marc - Here is something I got on Cloudy Nights.
Here's someone getting great results with the C8-NGT - http://home.comcast.net/~solospam/
Be sure to read his Astrophotography Cookbook - http://home.comcast.net/~jimc8ngt/ar...ook/index.html
Tips:
- You'll probably need a new low profile focuser to reach focus with the Canon.
- The C10 is getting close to the limits with the CG-5 mount, but you should be fine. You might want to do the Astronomyboy upgrades - http://www.astronomyboy.com/cg5/
- You'll have some coma with the C10, so you might look into a MPCC.
- Get good at collimation.