Here's my revised M42 this time I merged the 120S exposures with the 900S exposures
Details are:
All exposures were done in
HA 7nm - Mapped to Green and also used as luminance
SII 7nm - Mapped to Red
OIII 7nm - Mapped to Blue
All processing was done in Photoshop following the guide from Bob Franke
Equipment used:
Celestron C80ED APO Refractor
Skywatcher NEQ6 Pro Mount
ATIK 383L+ Mono CCD
StarlightXpress 7x36mm EFW
Full size image can be viewed on my flickr page:
http://www.flickr.com/photos/30345959@N08/12622279103/Enjoy
Simon