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Infrared Reflectography

Examination of paintings by infrared radiation often reveals changes in composition, damages, fillings and retouches. Its most frequent use is in the detection of underdrawing executed with carbon pigments. Thin paint layers, opaque to visible light, are often partially transparent to radiation in the 700 nm to 2,000 nm range. White gesso, and to a lesser extent other light-coloured grounds, reflect infrared rays, but where there is drawing reflectance is reduced. This phenomenon can show the carbon-based under-drawing beneath paint layers. This can be extremely informative about the history and construction of the painting. We have equipment that will capture infrared in the region of 1,000-1,300nm & 1,700-2,000nm. We are currently developing a new infrared mosaicing system and the website will be updated with this information.

 

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HKI Publications on sale

Dec 04, 2018

The Hamilton Kerr Institute Bulletin No. 7 and Dr Spike Bucklow’s ‘The Anatomy of Riches’ are now available to order

Another Art Newspaper feature

Nov 27, 2018

The HKI's work on the Wallace Collections 'Views of Venice' paintings has featured in an article in The Arts Newspaper.

HKI Battel Hall Retable conservation featured in The Art Newspaper

Nov 13, 2018

The conservation and analysis of a rare 14th/15th-century Kentish retable, treated at the Hamilton Kerr Institute, featured in The Art Newspaper

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