M57, the first planetary nebula to be discovered, and IC 1296. The outer layers of M57 are just visible.
Anyone know how to combine L and Ha? When I try just to add Ha, it just causes a faint red blur around the nebula, with no structure
Also added close up - much easier to see the structure
I have also added a version with Ha - I originally tried this by adding to the R channel only. Because there was little signal in the L for the outer layers, this just produced a red blur. I then tried the Ha as Luminance as well, but since I had shot it binned 2x2, there was not as much structure in the inner ring. Finally, I added strong deconvolution to the Ha and used that - not quite as much structure as the 1x1 binned lum data, but not bad.
I think I prefer the LRGB shot, but I do like seeing the outer layers.
Finally, I added a version which combined the Ha and Luminance in pixelmath. Where the luminance was high (the core of the nebula), I used the Luminance. In lower areas, I used a linear weighting of the Luminance and Ha: Lum *(Lum/LumMin) + Ha * (LumMin-Lum)/LumMin. This blended the area with high luminance with the areas with lower luminance. I set LumMin = 0.45, the lowest luminance in the core of the nebula.
Still think I prefer the LRGB the best!
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