Thank you for the feedback, gentlemen. Brand, the banding has bothered me too right from the gitgo. The original shot is a NEF from a D600. Although lighter the color banding is in it too. My expertise doesn't extend far enough to mitigate it. It does get worse as the res is dropped going into a JPG. armand, the file could be flipped horizontally or squared if I understand your question. Not sure it would work with the light on the right;goes against convention?