Sometimes the picture is right outside your window. We were staying in a condo on the Pacific Ocean at Depoe Bay, Oregon and a wonderful effulgent red sunset appeared. I used a Nikon D 7100 and a Nikkor Zoom Lens (18-200 mm.) with a Cokin 3 step graduated Neutral density filter. The ISO was 200, F/16. 1 second exposure, with a focal length of 29 mm. I used a Gitzo Tripod and Arca-Swiss Head.