|
Photographs taken in ultraviolet (UV) illumination reveal the structure of the painting's surface layers. Ultraviolet light causes varnishes and retouching to fluoresce, and the specific manner and color of the fluorescence aids in identification. The greenish yellow overall coloration here indicates a natural resin varnish, such as mastic or dammar. The dark passages suggest restoration, broadly applied retouching, and overpainting. |
Ultraviolet Fluorescence 