This is a single shot, post processed image of the Dumbbell nebula. Single shot is easy to capture. However not so easy on the post processing. PP approach is a 2 layer processing of the star field background and dumb bell nebula itself separately to bring out the reds and greens in the nebula while losing the noise. The original picture below gives a sense of the difference post processing can make.
The nebula is much fainter and there is a glow in the black background due to 30s exposure and my Bortle 6 skies.
I am sure post processing was not easy . Will have to see it sometime
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