First time I've tested the 8" Newt(skywatcher Dob)/ST80 piggybacked on the EQ6 and despite setting everything up and then realizing that the DSLR T-adapter ext was too long; I was lucky enough after running backwards and forwards through the spares to find out that the supplied eyepiece/focuser adaptors(1.25"/2") on skywatcher dobs can actually unscrew!(lol) The 2" adaptor ext was a perfect screw in to the Canon EOS T-plate and allowed me to focus with enough focus travel.
** I forgot I'd enabled 2x2 binning plus didnt try to frame the Runnin' Man(I was tired), but it worked out quite well.
Very happy(for now).
5 x 3mins ISO400
5 x 30sec ISO800
Dark subtracted only.