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The green and blue channel may have some data in them but are largely just contributing noise. If you grab just the red channel that is where the majority of your good data is and it will have the best snr, of course you would lose some resolution due to the Bayer array. But if you dither and collect enough data (more than about 16 frames) then you can stack using the Bayer drizzle algorithm which will use the dithered subs to basically remove the loss of resolution from the Bayer array. Isolating the red channel at this point you haven’t lost as much resolution thanks to the drizzle.
I’m still learning but using the above has definitely improved my Ha data.
Last edited by Paulyman; 13-06-2019 at 06:23 AM.
Reason: autocorrect issues.
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