Looking through the layers: infrared transmitted photography (IRT) applied to the technical and documentary study of paintings on canvas
Abstract
This paper deals with the use of transmitted infrared photography (IRT), a technique which is still very unknown. Paradoxically its use provides fundamental information in the study and documentation of the painting. Unlike infrared (IR) photography, which is based on the phenomenon of reflection, IRT uses the transmission one, offering images of the whole layers of the work. Fundamentally, it provides evidence on the underdrawings and composition, showing its changes; as well as the method. This it can be considered one of the richest techniques in multiband imaging, while it is also a procedure that can be performed with little investment. The objective of this paper is to make it known in order to promote its use among conservators and researchers, as well as to show examples of its contributions, offering keys for its correct interpretation too.
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References
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