Hi, I did an LRGB version of this earlier and went ahead and got the narrowband data as well. I posted two palettes. I will probably post both separately but was interested in what people thought. The bottom image is the traditional Hubble Palette. The top image is the CFHT (Canada, France Hawaii Telescope) Palette. I was kind of curious what people thought of the CFHT palette. It brings out more of the reds because of the mapping of HA to red. I think they both have their charms but was curious what others think. Thanks for looking and comments and suggestions are welcomed. http://www.azstarman.net/SH155_NB.htm Bernard -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.