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So, here's an example of the workflow I'm talking about. Lion Nebula, 18hours with L-extreme from Bortle 8, 1h30min with L-pro from Bortle 5-6 for RGB stars. you can see Oiii and Halpha processed in BW, then "merged" in Compose as L = Halpha R=Halpha G=Oiii B= Oiii. Then center Lower is mixed result...

OK then, try to split Oiii and H-alpha, process them separately as Mono, then use compose to load the channels. And check the result. The thing is, I do not consider this painting, as it is sampling. And your circle in the other area, bigger, that's why I suggest you process separately then load in ...

Good work, about the soap bubble, I would say still needs more exposure, but you can create a circular mask ---> then auto --> substract from old, and you get this mask.jpg After go Color Module, keep the mask and click "Sample", the resulting color is pretty much the same color as the Oiii shell of...

I have seen similar flat issues, and to me that's humidity. Starting from the fact that your camera specs states : Working Relative Humidity: 20%—80% Storage Relative Humidity: 20%—95% imaging over 90% humidity as you mentioned is already set for disaster. Besides, as far as i'm aware, your camera d...

Hi Stefan, yes,...I don't know, perhaps is because it was an screenshot of a JPG? haha not no idea how it's rendered and why there is green remaining. I think Cap Green does not eliminate all green, but rather targets the gradient greens, so it could still be some green left contributing to the yell...

of course that was just a way to il.lustrate the difference. Reduction of green was perhaps too much, in a magnitude of 1.05 might be OK. the original has a green-ish yellow. but then again, depends on monitor and taste. For me was too green-yellow. but all depends on how one wants to represent it.

---- and BEFORE adjusting Green bias

(sorry, didn't let me uplpoad on previous message...dunno why )

Compare and let me know

Hi Stefan, sure, here you have Max RGB of Screenshot of your image (simply downloading jpg, ST don't let me open..so screenshot it is) maxRGB.jpg now, Max RGB after reducing some Green MaxRGB after.jpg And the end result result after Red.Green.jpg and yeah, is worth checking documentation for Denois...

Right, I downloaded the JPG and indeed, CAP green at 100% did very little, but some Reduce Green bias did the trick specially on the green-ish gradient in the center . About the denoise, on first step on Track off, I raise it quite a bit, as it has attention to detail thanks to Track, later on, play...

Nice looking Sea Horse, Stefan!!

Perhaps I would have used "Cap green" on Colour module for some gradient, and stronger/higher values on final denoise
but looks very good, nice dark nebulosity right there

Regards
Carles