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Aug 26, 2019 · Below are some examples of raking light, starting with a 17th century still life titled Quince, Cabbage, Melon and Cucumber by Juan Sánchez Cotán. Raking light illuminates the fruit from the left-hand side and leaves the other side in shadow.
Raking light, the illumination of objects from a light source at an oblique angle or almost parallel to the surface, provides information on the surface topography and relief of the artefact thus lit. It is widely used in the examination of works of art.
Raking light refers to a lighting technique used in visual examinations that creates a shallow angle between the light source and the surface being observed.
Raking light. Looking at a painting in 'raking light' simply means looking at it with the light shining from an acute angle rather than from the front, so shadows will be cast where the surface is not perfectly smooth.
Using raking light examination alongside other lighting techniques offers a comprehensive approach to art conservation. Raking light highlights surface details, while methods like ultraviolet light can reveal hidden layers and materials.
This clearly shows the power of ‘raking light’ in revealing the paper undulations, embedded creases, ingrained dirt and other interesting surface textures. Invaluable! Shown below is a portrait miniature of Charles, 1st Marquis Cornwallis (1738-1805), No 3922.
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Raking light is used to reveal a painting’s surface texture. Raised paint surfaces facing the light are illuminated, while those facing away create shadows. The increased appearance of paint texture can easily be seen, photographed or recorded digitally.
