Hi Nathan,
Best to start on moon images, it is the best to get and idea of a large bright object. These can be taken using DSLR on either single capture of live view, reasonably easily.
http://www.waelect.com.au/mswhin63/M...r/index.html#2 -
This image was taken using my DSLR on live view capture mode after I made a mount for my scope. Single captures using a DSLR are not practical and there is a lot of turbulence to deal with. The ideal method for capturing is with a CCD high frame rate camera or a webcam.
If you go through my gallery there is 3 sequences using a DSLR while the rest are webcam.
An important note is, each larger view uses a 3 x barlow, you would need a 4 x barlow to get the same result Mine 1500mm FL yours 900mm FL
The beauty of a DSLR is the ability to discard images that don't turn out right.
Deep sky may not be the best scope to use, but I will let other people let you know. I now use a motorised mount just for DSLR only capture of widefield, I removed the scope.