I'm certainly no expert when it comes to imaging, but connecting DSLRs to telescopes usually involves the use to the T-mount system. There are adapters for all common camera mounts to the T-thread (M42×0.75), and the tubes that screw into there can then be adapted to fit into 2" or 1.25" focusers, screw onto the top of eyepieces, etc.
EDIT: Here's some of the hardware involved:
http://www.ebay.com.au/sch/Telescope...0&_nkw=t-mount