Hello all...
Recently got an Astronomik OIII filter to combine with my Ha filter in order to try my hand at Synthetic RGB work.
When I've taken Ha subs to combine with RGB files for "HaRGB", I've split the Ha into its component red, green, blue channels...discarded G and B and used the Red channel as my Ha file - seems to work better than just converting the entire image to greyscale.
Question: Do I do something similar with the OIII sub? i.e use the green or blue channel?? Then use that single channel to work with to produce the synthetic RGB image?
Cheers in advance
Doug
