The six greyscale photographs in this image are of the scales from the Hawaiian dascyllus (Dascyllus albisella). Each image has a different lighting angle and all six will be used to reconstruct the surface topography on this patch of scales. Imaging a surface is as fast as positioning the specimen and taking six photographs. No specimen preparation is required – this method can be done on clear, shiny, wet, and slimy surfaces! Images: Dylan Wainwright and the Freshwater and Marine Image Bank.