Recently I downloaded the pixinsight trial and started reprocessing some older data. This is a combination image of M27 made with my C11 and ED110.... Exposure: C11 f/6.3: H-alpha 5x1800s (4,5nm custom scientific filter) OIII 7x1800s (13nm astronomik) ED110: R: 9x300s Baader R G: 3x300s Baader G B: 3x300s Baader B