Rosette WIP, Ha Oiii Sii

[tooth_dr]

Here is my WIP of the Rosette, data collected on the 12th, 15th and 18th March 2020.

Ha 9600s

Oiii 7800s

Sii 4800s

Takahashi Epsilson 180, Atik 383L+, Optolong NB filters, EFW3, 600s subs at -20oC, total integration time 6 hours 10 minutes

 

Thanks for looking.

Adam

 

 

Edited March 24, 2020 by tooth_dr
Sub length corrected

[MarkAR]

WOW !

[paul mc c]

Another cracking image mate......

[carastro]

Very nice Adam.

Carole 

[Jkulin]

Hi Adam, nice image but to me far too much purple, so quickly bunged into PI, inverted and used SCNR to remove the green then inverted back again, it too all of 15 secs.: -

 

[tooth_dr]

On 25/03/2020 at 15:14, Jkulin said:

Hi Adam, nice image but to me far too much purple, so quickly bunged into PI, inverted and used SCNR to remove the green then inverted back again, it too all of 15 secs.: -

 

 

Hi John, significant improvement.  I did see the magenta but that trick eluded me (even though I had read about it before!), so thanks for reminding me

I'll try a reprocess again, and dial it back a bit this time.

[geoflewis]

 

On 25/03/2020 at 15:14, Jkulin said:

Hi Adam, nice image but to me far too much purple, so quickly bunged into PI, inverted and used SCNR to remove the green then inverted back again, it too all of 15 secs

Hi Adam, that's a lovely Rosette and I agree that John's inverted SNCR trick made a good improvement. I don't do NB imaging, nor use PI, but I can think of a few times when I had a magenta background with my LRGB images that was problematic, so in future (if I remember) will try using an inverted HLVG in PS to see if that works the same. There's always something new to learn from other folks images 👍

[Xiga]

This is great Adam. The Epsilon is really sucking down those photons now. So much signal in just 6 hrs! 

The inverted SCNR trick does indeed work in PS, but to do it properly you must do it all in a Color layer and then merge it back down. If you do it on the main layer itself, it will raise the sky background a lot and you will lose contrast. 

With such amazing data, i couldn't but help have a quick 5 min fiddle in PS with just some selective colors adjustments (hope you don't mind). I'll post the settings at the bottom, although you might not like as much bling in your NB images as i do 🤪 

Here are the settings i changed: