[multiweb (Marc)]

Originally Posted by h0ughy

wow takes a bit of getting used to as they are normally all red/maroon but it is quite pleasing to look at

Hi David what you're seeing is a lack of reds in the dark areas which is indicative of Sii starvation. I deliberately chose to let some cyan vs. blue in this one because there is a clear distinction between the turquoise and deep dark blue sections of the nebula. Being more aggressive on the greens would level this nice contrast. If you have quality Sii data (which I'm not getting yet) then the mustard browns will naturally turn to deeper brown and reds and the cyan to deeper blues.

Originally Posted by strongmanmike

Enjoying the colour from you Marc

Mike

Thanks again Mike.

Originally Posted by troypiggo

Yes. Yes. Lovely colour. Stars handled well again.

Thanks Troy. Glad you think so.

I think I'm getting close to the right flow for the stars now, and it seems reproducible. If you check the PS stacks I've emailed you just after the color noise reduction I re-blend it as lighten mode at 50%. That puts colors back into the stars and gets rid of any ringing induced by other processes. 1:1:1 gives you the right color stars but the edge of the stellar profiles are obviously green.

At the end of the day I think having just enough data to overcome noise in each channel is key and you have to stretch everything while in 32/16bit FIT format prior to go down to a scaled TIFF in PS or you'll comb the histogram by lack of samples trying to stetch there.