#1  
Old 07-07-2021, 06:58 PM
AdamJL
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Lagoon M8

Hi all

I've spent a few nights now collecting some data on M8. Both with duoboad (L-Extreme) and broadband. Presented below is the duoband for now.
It's been a struggle to process this one in StarTools. I really think the colour module just never gets things right, even though the rest of the program is excellent.

So I decided to process this in Siril, a free alternative to the majors. This is a "first light" with processing in Siril, and I haven't done many things I normally do. No deconvolution, no star reduction, no noise reduction, no sharpening of the nebula. I don't know how to do that just yet, but will try and learn. It's a fun program!

I've also noticed that there are some backfocus issues with my setup that I need to work on, but that's another project.

Anyway, here's the first result. I'll revisit this and keep working on it over time. There's actually a bit more nebula hiding in the data that I'm trying to get out with more editing.

Links to bigger versions:
https://adamlawler.smugmug.com/Astro...ects/i-z3WfSx2
https://adamlawler.smugmug.com/Astro...ects/i-ZL2VVnQ

Camera:ASI2600MC
Scope: Skywatcher Evostar 80ED + Orion Field Flattener
Filters: None
Mount:EQ6-R Pro
Guiding camera: ASI290MM
Guiding scope: SkyWatcher EvoGuide 50ED
Subs: 145 x 180s
Total Integration: 7hrs 15 hours over two nights
Gain: 100
Offset: 50
Lights: 145
Darks: 40
Flats: 80 (40 per night)
Dark Flats: 80 (40 per night)
Bortle Class: 8
Moon: 41>32%
Software: NINA, PHD2, Stellarium, PoleMaster, Siril 0.99.10.1, Photoshop CC

Thanks for looking. For fun, I've added a starless version, because why not?
Attached Thumbnails
Click for full-size image (LagoonStars.jpg)
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Click for full-size image (LagoonStarless.jpg)
74.7 KB32 views
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  #2  
Old 07-07-2021, 07:11 PM
Startrek (Martin)
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Adam,
Great capture of M8 with loads of fine detail and depth.
Colours are nice too
Yes I agree Startools is a struggle with OSC narrowband processing, it’s hit and miss depending on what type of emission nebula your imaging. I follow Ivo’s advice using the Compose module but it doesn’t work that well , it’s more suitable for Mono and separate NB filters
I’m saying that Startools is brilliant processing software so powerful and intuitive
Anyway well done !!
Martin
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  #3  
Old 07-07-2021, 07:31 PM
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irwjager (Ivo)
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Hmmm.... First time I've heard about problems with OSC/NB processing consistency in ST.


I'd love to understand where things may be going wrong for you!
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Old 07-07-2021, 07:51 PM
AdamJL
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Quote:
Originally Posted by Startrek View Post
Adam,
Great capture of M8 with loads of fine detail and depth.
Colours are nice too
Yes I agree Startools is a struggle with OSC narrowband processing, it’s hit and miss depending on what type of emission nebula your imaging. I follow Ivo’s advice using the Compose module but it doesn’t work that well , it’s more suitable for Mono and separate NB filters
I’m saying that Startools is brilliant processing software so powerful and intuitive
Anyway well done !!
Martin
Cheers Martin. Yes it's super powerful but has quite the learning curve. It's taking me a while to get to grips with it.

Quote:
Originally Posted by irwjager View Post
Hmmm.... First time I've heard about problems with OSC/NB processing consistency in ST.


I'd love to understand where things may be going wrong for you!
Hey Ivo. I'm happy to drop you a PM or email if you want? I actually have a few issues that I just don't understand.
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  #5  
Old 07-07-2021, 08:07 PM
AdamJL
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By the way... here's the same nebula that I imaged when I first started, 9 months ago. Really pleased with the progress, but also realistic about how much there's still to learn.
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  #6  
Old 07-07-2021, 08:42 PM
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irwjager (Ivo)
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Quote:
Originally Posted by AdamJL View Post
Hey Ivo. I'm happy to drop you a PM or email if you want? I actually have a few issues that I just don't understand.
Yes please! I'm mid development cycle, so if there's anything to improve or fix, now would be a great time. Thank you!
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