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Hi Doug,
Did you bin your O111 and S11 2x2?
I usually do Ha 1x1 and the others 2x2. If your tracking is up to it use longer subs like 20 minutes or 30 minutes.
When you do your colour combine you need to weight the red and blue up a lot. So perhaps Ha as green is 1, S11 as red is 4 and O111 as blue as 2 or 3. Then you'll see the mustard type tones coming through. Ha is ust about always the very dominant signal and you need to counteract that otherwise NB images will all be very green.
When you process then you also boost the red channel using curves harder than the other channels again fighting this Ha green dominance in the image.
NB imagers usually image the S11 longer as well to get more signal as it is usually quite dim but not always.
You can also add a layer of Ha to the colour image and set it to luminosity and set the opacity slider to suit. It adds some clarity and details and tones down the colour a bit as well.
I hope this helps.
Greg.
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