Having a go at synthetic RGB using Ha and Oiii.
Processed as follows:
Red = Ha
Green = Oiii
Blue = Oiii+Ha(15%)
The image consist of Ha=2h and Oiii=3h.
Small version
http://ejcruz.smugmug.com/photos/602052368_xrzVT-L.jpg
Larger version
http://ejcruz.smugmug.com/photos/602052368_xrzVT-X3.jpg
Comments/advise always welcome.
Cheers
Eddie