Reprocessed version of my previously posted M27 which was captured using the LeNhance duo narrowband filter for OSC cameras. This time I extracted the red channel which contains mostly the Ha data and I made it the luminance channel. The RGB channels were then individually stretched and recombined with the new luminance as LRGB. The result was this blue/red version vs. the green/red version. This was my first try as this so I am sure there are user errors.