ngc6995

User images created with StarTools.
decay
Posts: 433
Joined: Sat Apr 10, 2021 12:28 pm
Location: Germany, NRW

Re: ngc6995

Post by decay »

Mike in Rancho wrote: Sat Aug 13, 2022 1:53 am Dietmar, that does not look like one of the bicolor compositing options. :think:
Oops, you’re right, Mike! Thank you for paying attention. :bow-yellow:

Steve, Freddy, I’m sorry :oops: . I copied the wrong parameter value. It should indeed be [L + Synthetic L From R(2xG)B, R(GB)(GB) (Bi-Color from OSC/DSLR)] as written in Ivo’s post.

So, like this
2022-08-13 10_41_46-Window.jpg
2022-08-13 10_41_46-Window.jpg (25.71 KiB) Viewed 1298 times

This leads in the end more or less automatically to something like this
2022-08-13 11_35_41-Window.jpg
2022-08-13 11_35_41-Window.jpg (78.89 KiB) Viewed 1298 times

Best regards, Dietmar.

P.S.: As for your NB/RGB combination, Freddy, I think it's better if Mike answers.
fmeireso
Posts: 367
Joined: Mon Sep 28, 2020 8:46 pm
Location: Belgium

Re: ngc6995

Post by fmeireso »

Hmm, meanwhile i still going to try it. The red in the picture looks better, and the cyan can be adjusted afterwards in GIMP.
I don't like the magenta in my pictures but that is difficult to alter for some reason afterwards.

Thanks Dietmar
decay
Posts: 433
Joined: Sat Apr 10, 2021 12:28 pm
Location: Germany, NRW

Re: ngc6995

Post by decay »

Freddy, yes, my hint was more for the HOO / bicolour processing Steve did in his case.
fmeireso wrote: Sat Aug 13, 2022 10:57 am The red in the picture looks better, and the cyan can be adjusted afterwards in GIMP.
I admit, I sometimes do a little postprecessing with darktabe or GIMP, but most times only for brightness / gamma corrections. For colour processing, I think it should be possible to use just the Compose / Color module :think:

As Mike wrote, you maybe should consider to link your stacks. People here are very contructive and could give great help.

Best regards, Dietmar.
fmeireso
Posts: 367
Joined: Mon Sep 28, 2020 8:46 pm
Location: Belgium

Re: ngc6995

Post by fmeireso »

alacant
Posts: 211
Joined: Mon Jan 25, 2016 7:03 am

Re: ngc6995

Post by alacant »

[L + Synthetic L From R(2xG)B, R(GB)(GB) (Bi-Color from OSC/DSLR)
Hi
With an 600d, by far the noisiest channel is the B. The main advantage of splitting the channels is that you don't have to use B at all. G carries the same colour data as the B, but is much cleaner. That's with our UHC filter. I believe the l-eNhance is similar.
Cheers
decay
Posts: 433
Joined: Sat Apr 10, 2021 12:28 pm
Location: Germany, NRW

Re: ngc6995

Post by decay »

Hi Steve,

thanks for your reply.
alacant wrote: Sun Aug 14, 2022 7:45 am With an 600d, by far the noisiest channel is the B.
I understand, that's interesting. I will have to check my data sets for that. That must be a lot of noise, that it is better to to omit B and to loose a lot of signal / integration time, noisy or not. :think:

Do you think, this noise in B is from your camera? Or due to light pollution?

Best regards, Dietmar.

Edit: I think, the G channel has usually better SNR with DSLR because there are twice as much pixels?! Just a thought ... :think:
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