I had a few folks ask me to post results on trying an imaging source camera -dbk 618 - for electronically assisted astonomy. I was able last night to take a shot of the orion nebula and nearby NGC 2261 - Hubble's variable nebula with a celestron cpc 9.25 inch using .5x focal reducer in what I would say are semi-rural skys.
Orion was taken at 5 seconds show while NGC2261 was at 9 seconds. The attached are with no stacking-so this is what I was seeing. This is way more than I can achieve visually. I couldn't begin to tell you how this would compare to another camera at these exposures since my experience has been planetary imaging not in this area.
A downsize for this camera is the small chip- which makes it a little more difficult to find an object on the screen-I would guess. The plus with this camera is the software which makes real time imaging easy-- these cameras are designed as industrial grade web type cameras so I believe the software is made for real time viewing. Anyways, I would say if you already own one and want to give this a try it is worth getting a focal reducer to see if you might want to pursue this type of viewing more.