Thats very nice now. Its an excellent image. Sure, more data is always good but at the size image I am not sure what you are seeing that requires lot more data. Is it noisy zoomed in?
I often shoot Ha 2x2 because usually its just adding some red areas to a colour image and 2x2 Ha is often much cleaner and the stars are already smallish in Ha. Getting the signal up quickly in limited imaging time is the game.
Greg.
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