M64 here.. from when I did the other galaxies a couple of weeks ago but in MaximDL Pro I couldn't get it the way I wanted it and assumed I needed a longer exposure time but tonight I stacked the TIFF's in "ImagesPLus" and used the 'FeatureMask' and other commands and then I put the FITS result into MaximDL Pro V6.16 for further commands like "KernalFilter Dilation5x5 with PixelRestrictions" and "AdjustSaturation 175% with PixelRestricions that shows there is _orange_ color?!?! .;;; but I used a Lumicon Minus-Violet 1.25" filter with a CanonEOSII Rebel T7i 'modified from Hutech' .xz