This is a bit of an experimental image taken on one of the calmest days I've ever experienced on Lake Superior last July. Normally, I wait for the sun to set and then take long exposure images but for this image I wanted to include it to give the eye more of a focal point. The water and sky image were taken at 16mm, iso 50, f5.6, and 921 seconds with a 15 stop Breakthrough filter. The foreground was taken from the same spot just before sunset and also at 16mm, iso 50, f22, 3s. In post, I blended the two. One aspect of this photo that bothers me is the banding. Do you have a recommended way to process images with banding issues?