M31 process try and try again

[Stu Wilson]

M31 processed again. Still not really sure what im doing. Its my best attempt yet but still a lot of noise in there.

[Stu Wilson]

Heres the TIFF file from DSS if anyone wants a try to see what they get.

Cheers :-)

m31nodarks.TIF

[geordie85]

Is that file straight from DSS? I ask because it seems to already have some processing done to it.

The histogram also shows evidence of it already been stretched.

[geordie85]

Here's the best I could do with your TIFF file and my limited processing skills

[Stu Wilson]

Yeah file straight from DSS only thing i did was line up the RGB curves and save.

Should i not do that in DSS?

Cheers

[geordie85]

Do you have apply changes or embedded changes box ticked? 

I never do anything apart from stack in DSS. All my post processing is done in Photoshop 

[Stu Wilson]

Im going to reprocess again tonight from scratch :-(

[The-MathMog]

What is the sub lengths, and how many did you take?
That might also give a clue into how much detail you can pull out of it.

[Stu Wilson]

150 secs x 54

[The-MathMog]

Gave it a go. Here is my result. My only real advice, and something I see you're aware of, is to take dark frames. There is streaks of hot pixels throughout the picture, which is hard to do much about, without meticulously patching them away one by one. Although, "Hasta La Vista Green" does a decent job of removing the green ones

 

[Stu Wilson]

Heres the restacked TIFF file for anyone to try.

Straight from DSS No alignment of channels or anything.

Cheers

Autosave004.tif

[Stu Wilson]

And my failed attempt at it lol

[JohnSadlerAstro]

While the Processing Inquisition is doing its rounds , I have to admit to Great Heresy, I use DSS to do some early stage processing, but I don't have Photoshop so I have to use GIMP. DSS can be a really useful starting point in the processing, but not having PS I don't know how effective it would be in your case.

John

[The-MathMog]

3 hours ago, Stu Wilson said:

And my failed attempt at it lol

Simply adjusting the color balance would help that picture out a lot. More red, less cyan, and some tweaks here and there

 

2 hours ago, JohnSadlerAstro said:

While the Processing Inquisition is doing its rounds , I have to admit to Great Heresy, I use DSS to do some early stage processing, but I don't have Photoshop so I have to use GIMP. DSS can be a really useful starting point in the processing, but not having PS I don't know how effective it would be in your case.

John

I honestly do that quite often too, as I can find that pulling out color afterwards can be quite hard. Hence, why I also align the color channels, and give like a 20% saturation boost in DSS, and saving that

[Astrosurf]

That's good info for such short subs. For the faint arms I would take guided subs of minimum 5 mins.

Alexxx

[Stu Wilson]

Will try 5min subs next clear night.

Wont be long until orions up at a sensible hour too. Looking forward to that with my new gear :-)