Bubble Nebula NGC7635.

[Topographic]

This is a re-process after acquiring a much more powerful computer and 4K screen. I was able to use the higher quality settings without having crashes or making (and) eating my lunch whilst waiting for some parts of the process to complete.

I Find using -RGB Ratio, CIELab Luminance Retention- gives me better colour, to my eyes anyway. I find the - Straight CIELab Luminance Retention- preset tends to overdo the Ha dominance. I also found , on this image at least, that the setting produced more pleasing star colours.

Interested to know what others think about the LRGB Method Emulation colour presets.

Cheers

David
Lacour
France

[Mike in Rancho]

Congrats on the new processing and viewing hardware, David! Getting everything to scale right with a high dpi screen sure is interesting. Most of the internet is still living in 720 or 1080p, and so not all websites want to work well on a 4K monitor.

So many stars in this region, and some great features. Bubble, cluster, a bit of lobster claw.

I take it this is full broadband data? For visual spectrum I tend to leave things as-is, meaning straight CIELab default. But I don't have a lot of experience capturing a great deal of Ha only via OSC or R filter, which is my assumption of the acquisition here.

Without going and cross-checking references though, to a glance all the colors seem reasonable for a visual spectrum of this target.

[Topographic]

Mike

Thanks for that.

I tend to err on the more muted side for colours. The acquiistion was RASA8 ZWO183MC and L2 Astronomik lum filter.

https://www.astrobin.com/u2s5p7/B/ for full resolution version.

Spec for PC is Ryzen 9 5950x, nvidia 4070i graphics and 128gb of RAM. Should keep me going for a long time! Just need to get my Dome syncing again. Had virtually a year out with health problems and getting more automation has been a necessity. Given me a chance to revisit older data though.

[Stefan B]

Looks pretty familiar to me. I had data of the Bubble and the cluster in broadband (although without the claw) and it looked pretty similar (viewtopic.php?f=11&t=2696 - mine was supplemented with duo NB data). So I guess we both are not too far off

I only very rarely use anything other than Straight CIELab Luminance Retention. I have to be very desperate in the Color module to turn to that drop down But maybe I should do that more often...

Anyway, cool image

Regards
Stefan