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Process my data (Iris Nebula)

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#1 TXLS99

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Posted 16 February 2020 - 03:02 PM

Hello

 

I've been a long time visitor here and have gathered a wealth of information. Its been about a year since I started my journey into astrophotography. A few months ago I captured data from the Iris Nebula. Stacking was done with Deep Sky Stacker and processing with Pixinsight. I'm still learning pixinsight, and it took me 3 attempts to produce the image below. 

 

The Iris nebula is one of my favorite targets. I'm pretty satisfied with the image I produced with my limited experience, but I would enjoy seeing a more experienced person take a crack at it, and see what I have missed.

 

Equipment: William Optics Z 103 with .8 reducer on Advanced VX mount, Canon 6D unmodified, no guiding, 90sec exposures 3200iso  Bortle 4

 

 

Stacked TIF File(88 Lights, 30 Dark, 40 Bias, 40 Flat) https://1drv.ms/u/s!...fnwyth?e=LPkZVB

 

IRIS.jpg

 

.


Edited by TXLS99, 16 February 2020 - 03:26 PM.

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#2 rgreenberg2000

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Posted 16 February 2020 - 03:49 PM

Thanks for the practice file!  Here's my attempt at tweaking your .tif file in PI:

 

49544005463_19e8693f34_c.jpg

 

Keep shooting!  That's a really nice set of data on that target.

 

Rich


Edited by rgreenberg2000, 16 February 2020 - 03:49 PM.

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#3 TXLS99

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Posted 16 February 2020 - 03:54 PM

You are welcome Rich and Thank you!

 

Looks good, its such a challenge balancing the dust and core area of the nebula, but thats what I love about this target


Edited by TXLS99, 16 February 2020 - 03:56 PM.


#4 rgreenberg2000

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Posted 16 February 2020 - 04:12 PM

I'm not super familiar with this target, so if I processed it again, I'd probably not crop it quite as far, kinda lost some of the surrounding character (your crop is better.)  Looking at it more, I clipped a bit too much background.  Too aggressive with the black point.

 

R


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#5 TXLS99

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Posted 16 February 2020 - 04:27 PM

Its a tricky one for sure, took me 3 tries to get that result. I actually tried it again 2 more times after that, with some new tricks that I learned, and I am unable to duplicate the same quality lol.  



#6 Acer

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Posted 16 February 2020 - 04:35 PM

Here's what I got with a quick 10 minute edit.  
 

First I used Astro Pixel Processor to stretch the TIFF image, then applied "light pollution filter" to get rid of the gradient.

In photoshop I adjusted the colors, then saved that image for the stars.  I then deleted the stars, did a fast cleanup and used the Nik Color Effects plugin to bring out more detail in the gasses and dust.

I then added a layer with the star data and overlayed it on the dust/gas data for the final image.  

 

Iris.jpg


Edited by Acer, 16 February 2020 - 05:07 PM.

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#7 TXLS99

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Posted 16 February 2020 - 04:42 PM

Here's what I got with a quick 10 minute edit.  
 

First I used Astro Pixel Processor to stretch the TIFF image, then applied "light pollution filter" to get rid of the gradient.

In photoshop I adjusted the colors, then saved that image for the stars.  I then deleted the stars, did a fast cleanup and used the Nik Color Effects plugin to bring out more detail in the gasses and dust.

I then added a layer with the star data and overlayed it on the dust/gas data for the final image.  

 

 

Wow...That looks great for such a quick process....it definitely shows how much dust I was missing!   



#8 Acer

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Posted 16 February 2020 - 04:47 PM

Wow...That looks great for such a quick process....it definitely shows how much dust I was missing!   

Thanks.  That is one reason I am still sticking with Photoshop.  I know it well (but still find little tricks here and there).  I just don't think I can get the same with PixInsight with no use of layers.  

I did download PixInsight once, but I was new in Astrophotography, so I wasted my free demo. 



#9 TXLS99

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Posted 16 February 2020 - 07:52 PM

I'm not super familiar with this target, so if I processed it again, I'd probably not crop it quite as far, kinda lost some of the surrounding character (your crop is better.)  Looking at it more, I clipped a bit too much background.  Too aggressive with the black point.

 

R

I am guilty of it too. I always want my black too black. Its hard to resist at times, I have to remind myself to back off sometimes! 



#10 Cfreerksen

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Posted 17 February 2020 - 12:29 AM

Her's the best I can do in about a half hour with PI. Still a rookie. Really nice data.

 

Chris

Attached Thumbnails

  • IRIS_TIF_FILE.jpg

Edited by Cfreerksen, 17 February 2020 - 12:30 AM.

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#11 TXLS99

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Posted 17 February 2020 - 10:31 AM

Her's the best I can do in about a half hour with PI. Still a rookie. Really nice data.

 

Chris

Thanks for taking the time and thanks for the compliment on the data, your final product looks great!  



#12 George Simon

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Posted 17 February 2020 - 01:40 PM

I gave your data a quick processing with StarTools (with some help from StarNet and GIMP). As you can see, there's plenty of dust in your image. I'm pretty sure that more processing could be done to improve the final product, but to my eye, it looks pretty good as is. Nice acquisition!

 

IRIS PROCESSED 2.jpeg


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#13 dangarnett

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Posted 17 February 2020 - 04:40 PM

Here is my processing. It was quite tough to pull out that faint dust and still keep the noise at bay!

https://i.imgur.com/sCTNqOe.jpg

sCTNqOeh.jpg

 

QroG8Lpm.png

 

1, 2 : ran ABE twice to remove some harsh gradients from the left side. 

3, 4 : Stretched the image

5 : Reduced Stars ( I pulled luminance before this and ran a heavy noise reduction before pulling a star mask to get all the stars better into a mask) 

6 : I made a starless image from the heavy noise reduced Lum, and used this as a mask to curves adjust just the dust up  (used Morphological Transform a bunch to make starless) 

7 : Noise reduction on lightness

8 : Another stretch tweak with HT

9 : Saturation boost with star mask applied to bring up star color

10 : separated file into LRGB and ran MMT and ACDNR on each R G B for chromanance noise reduction

11 : Recombined with LRGB Comb. 

12 : Ran SCNR

13 : Final saturation adjustment

14 + Did final crops and tweaks in Lightroom. 

 

Cheers

-Danny


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#14 Cfreerksen

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Posted 17 February 2020 - 07:00 PM

Here is my processing. It was quite tough to pull out that faint dust and still keep the noise at bay!

https://i.imgur.com/sCTNqOe.jpg

sCTNqOeh.jpg

 

QroG8Lpm.png

 

1, 2 : ran ABE twice to remove some harsh gradients from the left side. 

3, 4 : Stretched the image

5 : Reduced Stars ( I pulled luminance before this and ran a heavy noise reduction before pulling a star mask to get all the stars better into a mask) 

6 : I made a starless image from the heavy noise reduced Lum, and used this as a mask to curves adjust just the dust up  (used Morphological Transform a bunch to make starless) 

7 : Noise reduction on lightness

8 : Another stretch tweak with HT

9 : Saturation boost with star mask applied to bring up star color

10 : separated file into LRGB and ran MMT and ACDNR on each R G B for chromanance noise reduction

11 : Recombined with LRGB Comb. 

12 : Ran SCNR

13 : Final saturation adjustment

14 + Did final crops and tweaks in Lightroom. 

 

Cheers

-Danny

I like how you pulled up the dust. Kinda blew out the core though.

 

Chris



#15 TXLS99

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Posted 17 February 2020 - 09:52 PM

Here is my processing. It was quite tough to pull out that faint dust and still keep the noise at bay!

https://i.imgur.com/sCTNqOe.jpg

sCTNqOeh.jpg

 

QroG8Lpm.png

 

1, 2 : ran ABE twice to remove some harsh gradients from the left side. 

3, 4 : Stretched the image

5 : Reduced Stars ( I pulled luminance before this and ran a heavy noise reduction before pulling a star mask to get all the stars better into a mask) 

6 : I made a starless image from the heavy noise reduced Lum, and used this as a mask to curves adjust just the dust up  (used Morphological Transform a bunch to make starless) 

7 : Noise reduction on lightness

8 : Another stretch tweak with HT

9 : Saturation boost with star mask applied to bring up star color

10 : separated file into LRGB and ran MMT and ACDNR on each R G B for chromanance noise reduction

11 : Recombined with LRGB Comb. 

12 : Ran SCNR

13 : Final saturation adjustment

14 + Did final crops and tweaks in Lightroom. 

 

Cheers

-Danny

Wow...just amazing how much dust I actually caught. I thought I would have had to double my acquisition time to get that much dust. This shows me that the equipment is doing its job, I just need to do my job with better processing lol.gif   Thanks for posting your workflow, that helps a noob like me.




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