Welcome Paul. Sound like your diving right in which is great. You can hang a dslr off a dob but there are a couple of things to deal with: tube balance, dobs need counterweight at the back behind the pivot if you put more weight on the front; focal point, dobs are usually designed for visual use, and thus the optical focal point is optimised for eye pieces. Cameras have a different focal point but there maybe extenders or afocal attachments that help out. There are certainly folks around this forum that take photos from dobs; Long exposure tracking is a problem for dobs due to the Alt/Azimuth mount type but short exposures are certainly possible. Importantly have fun.
Perhaps it is time for another Coast Morning Tea.
