DSI Pro II image overlaid onto star field captured with a DSLR.
The DSI Pro II and the DSLR shot where captured with an 8inch
Newtonian at f5. I had trouble centering the DSI shot after
crossing the meridian for the green and blue channels so I thought
of using a previous M27 shot captured with a Pentax DSLR to gain
back some of the field stars. Anyway it makes a nice effect and
retains the original resolution, color and S/N ratio in the nebula
of the DSI.