Thanks for all that great feedback. As you can see, there is no right or wrong way to process an image!
I blinked the images many times myself and thought that the multiscale processing had made a significant improvement. Indeed Ken, you can get pretty much the same result in PS.
I took the newly processed luminance to create the added detail and contrast, but the heavier colour came about by my reapplication of the new LRGB image in soft light blend mode - that added the saturation.
The technique in PI is not straightforward at all, unless you are well practiced in it of course....took me bloody ages.
large scale v small scale - the former would equate to the spiral arms and the core of the galaxy...the latter would relate to the HII regions, dust lanes and stasr.
cheers
Martin
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