My target for testing a new Baader MPCC III coma corrector on the Sky-Watcher Explorer 150P, cropped in a bit from the modified full frame Nikon D750 because there's still distortion in the corners - but overall so much better than before. Sky-Watcher EQ-5 Pro mount with control via Stellarmate and KStars/Ekos. This stacks 100 x 30" exposures at ISO 100, with calibration frames, processed in Astro Pixel processor and Lightroom.