Yes, I use averaged dark frame subtraction for night shots (not deep sky, but landscape lit by moon or milky way). It helps a lot with banding and other pattern noise.
Anyway, 'standard' (black+cblack) and averaged values are close enough to not change white balance much.
Yes, I use averaged dark frame subtraction for night shots (not deep sky, but landscape lit by moon or milky way). It helps a lot with banding and other pattern noise.
Anyway, 'standard' (black+cblack) and averaged values are close enough to not change white balance much.