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Thanks for the comments.
Gavin, the skies are reasonably dark except, particularly to the East and South.
Jon, I stack all my Lights (RAW), Darks, Flats and Bias in DSS and while I know the initial output can look like nothing at all, in this case I'm seeing a pretty decent amount of data, but when I try and process it in GIMP, I just can't work the levels and curves to bring out anything like the colour I get by manual stacking a few JPGs (as per attachment). Don't get me wrong, I'm quite pleased with what I produced, but I just feel there's probably more potential with all the RAW stacked data out of DSS.
I might mention that I spent quite a while trying to retain a decent image at 200kb for posting. I usually resize to 800 x default and then Save to Web in IrfanView but this gives quite poor results. This time I used Save As in GIMP and set the output quality to 30%. This put it to ~ 700kb. I then cropped the worst of my outer stars and then (through trial and error) resized the image until < 200kb. In this case it ended up ~ 1700 x default.
Bruce
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