Last week I had access to a mount that moves a telescope to track stars through the night sky. I'm thinking of buying a telescope optimized for astrophotography, so I gave it a try by mounting my E-M5 + Four Thirds adapter + 35-100 mm f/2 lens on the tracking mount. Astrophotographers generally stack many subexposures of dim astronomical objects, adding up to many minutes or hours of total exposure, to increase the signal to noise ratio. Not knowing what I'm doing (yet), I took many exposures to stack when I learn how. Meanwhile, I looked at some of the subs with LR5, and picked one 60 second exposure to try conventional image processing. If you can call the extreme slider settings I used as conventional ... Here is a crop of that single exposure, shot at f/2.8 and ISO 1600, with some of LR's sliders moved to their limits: I was very surprised at how well this single sub came out. You're looking at the spiral galaxy almost edge-on so the perspective is distorted, but you can make out some dark dust lanes between spiral arms. Now I'll experiment with stacking and processing with specialized astrophotography software to bring up the brightness and detail.