Susan Derges (b. 1955) is a British photographer known for her innovative camera-less photographic techniques, particularly her work with photograms and direct printing processes. She often submerges photographic paper in natural bodies of water, capturing the movement of rivers, the phases of the moon, and the interaction between light and landscape. By using moonlight, flashlights, or ambient light to expose the paper, Derges creates poetic, elemental images that reflect the cycles of nature. Her practice explores the relationship between the natural world and human perception, blending art and science to evoke a profound sense of connection to the environment.