Raking light photography is a useful method for the examination of works of art and archaeology. It is part of the Technical Photography documentation and allows to detect and document surface features. RAK is used to document retouching and losses in paintings, as well as to study the painting technique, since it makes clear the brush work and the layering of the paints.
Technical Photography is one of the most powerful—and often overlooked—tools for the scientific examination of art and archaeology. If you are a conservator, scientist, or art collector and you are not yet familiar with this method, it is truly a missed opportunity. Using simple, affordable equipment and a clear methodology, Technical Photography allows you to reveal underdrawings, retouchings, material differences, and conservation issues in a completely non-invasive way. Far from being complex or inaccessible, it is an easy entry point into scientific analysis. In many cases, Technical Photography represents the first essential step toward a deeper understanding of artworks and archaeological objects.