This is my final process of The Rosette Nebula for this chapter. Here you see a wide band and narrow band + wide band, false color hybrid (using all 7 filters LRGB, H-Alpha, SII and OIII). I tried to maintain a natural color. Total Exposure time 9 hours All exposures un binned (1x1) Luminance 6 x 5 min H-Alpha, OIII, SII 4 x 30 min each RGB 5 x 10 min each QHY9M monochrome CCD cooled to -30C Thomas M. Back TMB 92SS F5.5 APO Refractor Paramount GT-1100S German Equatorial Mount (with MKS 4000) Image Aquisition Maxim DL Stacking and Calibrating: CCDStack Registration of images in Registar Post Processing Photoshop CS5