Go Back   IceInSpace > Images > Deep Space

Reply
 
Thread Tools Rate Thread
  #1  
Old 28-07-2021, 05:01 PM
Andy01's Avatar
Andy01 (Andy)
My God it's full of stars

Andy01 is offline
 
Join Date: Mar 2012
Location: Melbourne
Posts: 3,253
DSO's in 'Natural' Narrowband

Imagine imaging DSO's with a One Shot colour camera but with the added detail of Narrowband.

Here we have my interpretation of a "natural" palette, with the Sii on a 'ultrared', Ha in red and Oiii in green and blue channels and with the star colours removed.

A lockdown project,using data from earlier this season, processing inspired by Jose Carballada.

Taken from my light polluted suburban backyard, Bortle 7 - Melbourne.

CARINA
IC 2944
M8
M42
Attached Thumbnails
Click for full-size image (Carina_HaO3S2.jpg)
47.5 KB126 views
Click for full-size image (IC 2944 HaO3S2.jpg)
44.2 KB96 views
Click for full-size image (M8_Ha_O3_S2_finalx.jpg)
46.1 KB98 views
Click for full-size image (M42-HaO3S2x.jpg)
34.8 KB93 views
Reply With Quote
  #2  
Old 28-07-2021, 06:27 PM
The_bluester's Avatar
The_bluester (Paul)
Registered User

The_bluester is offline
 
Join Date: Feb 2011
Location: Kilmore, Australia
Posts: 3,342
Certainly provides for a very dramatic look to the images. One for me to try maybe once i finally get some clear sky again.
Reply With Quote
  #3  
Old 28-07-2021, 07:19 PM
JA
.....

JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 2,945
Quote:
Originally Posted by Andy01 View Post
Imagine imaging DSO's with a One Shot colour camera but with the added detail of Narrowband.

Here we have my interpretation of a "natural" palette, with the Sii on a 'ultrared', Ha in red and Oiii in green and blue channels and with the star colours removed.
Lovely images and colours Andy You've been true to the respective wavelengths with that colour-scape. You could certainly call it natural-narrowband. Now if only our eyes could gather enough light and have such filters built-in.

Best
JA
Reply With Quote
  #4  
Old 28-07-2021, 07:54 PM
Nikolas's Avatar
Nikolas (Nik)
Dazed and confused

Nikolas is offline
 
Join Date: May 2012
Location: Melbourne
Posts: 3,253
ultrared?
Reply With Quote
  #5  
Old 28-07-2021, 10:00 PM
JA
.....

JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 2,945
Quote:
Originally Posted by Nikolas View Post
ultrared?
I suspect it might be like deep red, like a Wratten 29 photographic filter (a darker slightly brownish red) versus the more common Wratten 25a standard filter red somewhat brighter. That would certainly logically accord with respective colours for the wavelengths of S-ll and H-a, but it's dealer's choice so who knows?

Best
JA
Reply With Quote
  #6  
Old 29-07-2021, 07:06 AM
Andy01's Avatar
Andy01 (Andy)
My God it's full of stars

Andy01 is offline
 
Join Date: Mar 2012
Location: Melbourne
Posts: 3,253
Quote:
Originally Posted by The_bluester View Post
Certainly provides for a very dramatic look to the images. One for me to try maybe once i finally get some clear sky again.
Clear skies? What is this strange phenomena of which you speak?

Quote:
Originally Posted by JA View Post
Lovely images and colours Andy You've been true to the respective wavelengths with that colour-scape. You could certainly call it natural-narrowband. Now if only our eyes could gather enough light and have such filters built-in.

Best
JA
Indeed, but this will have to suffice until Skynet cyborg technology advancements are commonplace.

Quote:
Originally Posted by Nikolas View Post
ultrared?
Quote:
Originally Posted by JA View Post
I suspect it might be like deep red, like a Wratten 29 photographic filter (a darker slightly brownish red) versus the more common Wratten 25a standard filter red somewhat brighter. That would certainly logically accord with respective colours for the wavelengths of S-ll and H-a, but it's dealer's choice so who knows?

Best
JA
Essentially, in PS...
Sii >360
Ha >330
O3>200
With minor tweaks to taste.
Reply With Quote
  #7  
Old 29-07-2021, 09:10 AM
PKay's Avatar
PKay (Peter)
Registered User

PKay is offline
 
Join Date: May 2017
Location: DEPOT BEACH
Posts: 1,643
Nice work as per usual Andy.

Thanks for sharing the processing
Reply With Quote
  #8  
Old 29-07-2021, 09:25 AM
Startrek (Martin)
Registered User

Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 5,990
Andy,
Great images and nicely processed too
Very natural
Give Startools V1.7 a go for OSC or Mono narrowband
Ivo developed the Compose module I think about a year or two ago
Does a similar thing with “natural” narrowband, puts you in control of your colour processing with so many variables , presets and blends
He’s working on V1.8 at present and is in development stage
Cant wait for it to be completed
Cheers
Martin
Reply With Quote
  #9  
Old 29-07-2021, 09:33 AM
Peter Ward's Avatar
Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,090
Very tidy resolution and contrast but the colour is too "interpretive" for my liking.

Last edited by Peter Ward; 29-07-2021 at 09:49 AM.
Reply With Quote
  #10  
Old 29-07-2021, 09:59 AM
Andy01's Avatar
Andy01 (Andy)
My God it's full of stars

Andy01 is offline
 
Join Date: Mar 2012
Location: Melbourne
Posts: 3,253
Quote:
Originally Posted by PKay View Post
Nice work as per usual Andy.

Thanks for sharing the processing
Hi Peter, you're welcome, cheers.

Quote:
Originally Posted by Startrek View Post
Andy,
Great images and nicely processed too
Very natural
Give Startools V1.7 a go for OSC or Mono narrowband
Ivo developed the Compose module I think about a year or two ago
Does a similar thing with “natural” narrowband, puts you in control of your colour processing with so many variables , presets and blends
He’s working on V1.8 at present and is in development stage
Cant wait for it to be completed
Cheers
Martin
Thanks Martin.

I used to use Startools and quite liked the results, but when the Mac OS was upgraded, ST became too clumsy to access and constantly crashed, so I moved on to APP.

I also use PS everyday at the studio, so I'm unlikely to move to PI anytime soon either.

Quote:
Originally Posted by Peter Ward View Post
Very tidy resolution and contrast but the colour is too "interpretive" for my liking.
Thanks Peter.
FYI the three filter stacks have been assigned colours close to their actual bandwidths. ie: S2 672nm, Ha 656nm and O3 500nm. (see chart attached)
Attached Thumbnails
Click for full-size image (ZWO_narrowband_filters_transmission_curve.jpg)
96.6 KB29 views
Reply With Quote
  #11  
Old 29-07-2021, 06:41 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 17,877
Sensational Andy. I really like them. The level of detail is amazing.

Greg.
Reply With Quote
  #12  
Old 29-07-2021, 06:43 PM
Peter Ward's Avatar
Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,090
Quote:
Originally Posted by Andy01 View Post
Thanks Peter.
FYI the three filter stacks have been assigned colours close to their actual bandwidths. ie: S2 672nm, Ha 656nm and O3 500nm. (see chart attached)
I suspect my response needs some explaining.
These are well known bright nebulae that are great to image.

They all have natural yet subtle colours that show the physical processes going on within them.

Adding "extra" intensity to a particular emission line can easily mask this.

There is no doubt that you've created an eye soothing set of images
but to me, they are almost duo-colour, with all of the subtle star colours,
absorption and emission processes masked as a result.

So it comes down to whether you like accuracy/fidelity, art or popular appeal.

There are no rules....more a case of a rising tide (i.e. popularity) can float many boats.
Reply With Quote
  #13  
Old 29-07-2021, 10:48 PM
carballada's Avatar
carballada (Jose)
Registered User

carballada is offline
 
Join Date: Jul 2021
Location: Barcelona
Posts: 1
really nice results!!!
you pushed the idea to the limit congratulations!!!!

I tried this palette as a consequence when the usual HOO or Hubble was named as "not natural" in any way by some colleagues. Really I am a fan of narrow band and tone mapping.

But I agree that when we use narrow band, it is never natural but with these parameters it tries to feel like regular RGB on asteroids!!

PD: thanks for the mention by the way

Last edited by carballada; 29-07-2021 at 11:02 PM.
Reply With Quote
  #14  
Old 30-07-2021, 02:00 PM
matlud (Mathew)
Registered User

matlud is offline
 
Join Date: Jun 2015
Location: NZ
Posts: 248
Very nice Andy �� Like the palette, might have to try something similar on my next project ��
Reply With Quote
  #15  
Old 30-07-2021, 07:31 PM
Nikolas's Avatar
Nikolas (Nik)
Dazed and confused

Nikolas is offline
 
Join Date: May 2012
Location: Melbourne
Posts: 3,253
"Essentially, in PS...
Sii >360
Ha >330
O3>200"


I'd like to see how this is done in Photoshop
Reply With Quote
  #16  
Old 31-07-2021, 05:26 PM
Bassnut's Avatar
Bassnut (Fred)
Narrowfield rules!

Bassnut is offline
 
Join Date: Nov 2006
Location: Torquay
Posts: 5,064
mm, impressive detail and dramatic, but a bit duotonic?
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 05:56 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Testar
Advertisement
Bintel
Advertisement