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Hi Jeff
Congrats on assembling the gear, you're going to have some fun using it, mixed with a little frustration too no doubt!
Personally, I’d first investigate getting the mount polar aligned so that the ‘scope will track the stars (if the mount is motorized) as the Earth rotates around the South Celestial Pole (SCP).
Once you’ve done that (it’s called “Polar Alignment”) then I’d be fitting the Canon 40D with a 50mm to 135mm focal length lens to the scope or mount (called piggy back) and take a few photos, say 3 to 5 minute exposures depending on light pollution in your region.
The next step would then be prime focus astrophotography, where the 40D lens is removed and the 40D body only is attached to the focuser of the ‘scope (via an EOS to T-adapter); effectively, the ‘scope then acts as a super telephoto lens.
Cheers
Dennis
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