This is my first attempt at incorporating 18.5 hours of OIII into my IC5148 image. Basically I just added the OIII to the blue and green with equal weight. It looks a little weird and there are probably better ways I could have presented it. Essentially I just superimposed the halo on the nebula.
Cheers
Steve
http://members.pcug.org.au/~stevec/I...L6303_RC14.htm