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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 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

Internships in the Conservation of Easel paintings

Oct 17, 2018

Applications are invited for 2 internships in the Conservation of Easel Paintings to begin in September 2019

Secrets of a Cabinet Miniature

Jul 03, 2018

The conservation and analysis of a miniature painting by Isaac Oliver

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