Hi Paul,
The scope is mounted in polar mode, I dont use the 884 as its wedge didnt give me any RA adjustment. My father Barry Gerdes made a custom wedge that I have mounted on and EQ3-4 tripod, see this thread.
http://www.iceinspace.com.au/forum/s...ad.php?t=45795 . The camera is held on via a custom "strap" that wraps around the OTA with a platform that has a normal tripod screw.
I control the camera with the standard EOS utility via a USB cable, focus through liveview on my PC, then revert to manual focus.