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  #1  
Old 24-11-2022, 01:07 AM
oska (John)
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Spider Bro

An attempt at more than an experiment.

4hrs each S H O 30s 250g
1hrs each R G B 30s 139g
3hrs L 15s 139g

ASI1600MM + Antlia pro 3nm. -10C
EON85 560mm

NINA & PI

ABE, NoiseXterminator, Generalised Hyperbolic Stretch

LRGBcombination + light star reduction(BB)
(SHO)LRGBcombination
(HO)NBRGBCombination + extra light star reduction(BB)

As always, criticism, tips most welcome.
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Click for full-size image ((HO)NBLRGBCombination_SR-1.jpg)
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Last edited by oska; 24-11-2022 at 01:28 AM.
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  #2  
Old 24-11-2022, 01:14 AM
oska (John)
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And a poorly stretched one that had too much hydrogen (4hrs of 90s 200g) and a severe calibration issue, caused by the slightest rotation of the camera (bumped?) between lights & darks, fixed later by registering with "nearest neighbour" interpolation in either APP or PI
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  #3  
Old 24-11-2022, 05:06 AM
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Truely magnificent John and an absolute pleasure to look at.
Alex
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  #4  
Old 24-11-2022, 08:03 AM
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AstroViking (Steve)
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Great set of images, John.

The blue one I like the best, being all swirly and detailed and so many things for the eye to focus on.The green one (...Combination_SR1) looks suitable creepy and plague-like...

Cheers,
V
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  #5  
Old 24-11-2022, 11:22 AM
oska (John)
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Thanks Alex.

Cheers Steve, I couldn't decide on how I wanted to combine them, I like the SHO the best too
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  #6  
Old 24-11-2022, 11:58 AM
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Nikolas (Nik)
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Middle one is defintely the best
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  #7  
Old 24-11-2022, 02:10 PM
oska (John)
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Thanks Nik.
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  #8  
Old 24-11-2022, 08:22 PM
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Excellent capture john . I like personally like the middle image.
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  #9  
Old 24-11-2022, 08:51 PM
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Crater101 (Warren)
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These are all good, but I do like the blue one the most, the colour is superb!
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  #10  
Old 24-11-2022, 08:55 PM
oska (John)
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Thanks Kuz.

Thanks Warren.
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  #11  
Old 25-11-2022, 09:42 AM
AdamJL
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I like the core in that first one. Good work!
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  #12  
Old 25-11-2022, 10:33 AM
oska (John)
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Thanks Adam
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  #13  
Old 26-11-2022, 09:15 PM
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Doogs38 (Alex)
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Superb wide-field, John. I envy your skies mate. I’m a sucker for palettes with blue so that’s my fave. That said, I wonder if it’s possible to blend some of the blue image with the red/green to draw out some blue colour in and around the core? The green image reminds me of what I see visually with my 14” dob. Love your work Alex
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  #14  
Old 27-11-2022, 01:26 AM
oska (John)
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Cheers Alex! Ok, after a little swearing
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  #15  
Old 27-11-2022, 07:46 AM
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Excellent John.
Alex
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  #16  
Old 27-11-2022, 08:11 AM
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Doogs38 (Alex)
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Quote:
Originally Posted by oska View Post
Cheers Alex! Ok, after a little swearing
Lolz, your PI swear-jar will be as full as mine John That’s excellent John, you truly nailed the blend in IMHO and the advantage of a mono+filter setup is shining through. Did you accomplish that with pixelmath and masks? Alex
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  #17  
Old 27-11-2022, 02:31 PM
oska (John)
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Cheers Alex^2

I tried a whole bunch of things, but from memory I think I made 2 pixel math combinations of the SHO & HOrgb 50/50 & 60/40 and then combined those, I think. Then made a softened green mask (BB) and then curves: a, blue and a touch of desaturation, I think. I kept the SHO open as I tweaked it until the blue was roughly the same.
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