After some encouragement to try ways of reprocessing my image of M83 I spent a fair bit of time and trial and error reprocessing in GIMP, I think I have squeezed about as much detail as I can out of the M83 data, I was suprised to see how much detail was there considering I used alt/az tracking no guiding and only 100 x 25sec iso1600 subs. I will keep the data and hope to be able to add more subs to this data soon.
Colour is great Wayne. You seem to have mastered GIMP - interested in your processing steps... You can tease some more detail out with wavelets, if GIMP has a plugin for that.
