AP 130 EDF, modded Nikon D600, about ten 120 second frames at ASA 800, stacked with Nebulosity. About three hours and 30 frames in, I realized my scope had drifted out of focus due to temperature dropping to 15 degrees; so only had 10 usable frames. Yet another great learning experience at 2 am while freezing my toes off!! I was amazed with how much detail I recorded nevertheless. The Rosette is my favorite photography target yet! We shall have another night together soon, with luck.