These are photos of oil in water. You start out with a clear glass baking dish raised above the floor about 6". On the floor you place something colorfull. I used different pieces of paper. I then take some lights and only light up the paper, so most light is reflecting up. The camera is set up on a tripod shooting straight down. Get as close as you can, my lens allows me to be about 1' away. Use a low F-Stop number, and meter. Set your White Balance on auto. Pre-focus and then turn off the auto focus. Shoot away. I end up taking lots of photos to get just a couple of shots. To give you an idea, these two photos took about 2 hours and I took about 180 shots.