Combining Ha to RGB in Photoshop

7 replies345 views
Edmullinsphotography avatar
Hi, can anyone point me to a tutorial on how to add Ha to an RGB image in Photoshop?  It seems like it should be obvious, but for whatever reason I am struggling to do so…thanks in advance smile

Ed
Oscar H. avatar
I think one way to do it is to combine the starless H-a with the red channel using superimposition or stacking. I'm a newbie here too, so don't take it as a fact.
Reg Pratt avatar
Oscar H. avatar
(deleted)
Edmullinsphotography avatar
I think one way to do it is to combine the starless H-a with the red channel using superimposition or stacking. I'm a newbie here too, so don't take it as a fact.

*** Thank you, I'll give it a try***
Edmullinsphotography avatar
Reg Pratt:
https://youtu.be/AxXpT8XJphg?si=eX9dKLTGCe7o8E-V

https://youtu.be/Hh_Mp4RSAVg?si=EuMOfY1OM623O0if

*** Thanks, I'll give them a watch, it seems like exactly what I was looking for ***
Well Written
Ryan Faulkner avatar
One method is to add Ha as a luminance layer:
  • Mode: Lighten
  • Opacity: 85%
  • Fill: 50%

https://astrob.in/zuctjr/0/​​​​​​​

You can also use Siril (it's free) to combine Ha & RGB using PixelMath: 
https://astrob.in/2yb1nj/0/
Edmullinsphotography avatar
Ryan Faulkner:
One method is to add Ha as a luminance layer:
  • Mode: Lighten
  • Opacity: 85%
  • Fill: 50%

https://astrob.in/zuctjr/0/

You can also use Siril (it's free) to combine Ha & RGB using PixelMath: 
https://astrob.in/2yb1nj/0/

*** Thanks, sounds simple, I will try it***
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