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Thursday, May 29 • 5:00pm - 5:30pm
(Paintings Session) Illumination For Inpainting: Selecting an Appropriate Color Temperature

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Traditionally, many conservators have preferred daylight, and specifically northern daylight, as the preferred source for inpainting. Unfortunately, the availability and control of northern daylight limits the amount of time, and the location in which it can be used as the primary source of illumination. Therefore, supplementary and alternative sources of illumination for inpainting are necessary. What are the essential characteristics of northern daylight that make it a preferred source? What criteria should be used to select viable alternative sources of illumination?

This presentation will analyze the key components that make daylight a preferred source for inpainting, including such characteristics as color temperature, color rendering and light distribution. It will also take into account the fact that many artifacts will ultimately be exhibited at a color temperature that is extremely different from northern daylight and how this should influence the selection of an inpainting light source.

A primary focus of the talk will be the importance of selecting an appropriate color temperature with adequate color rendering properties. In order to illustrate the importance of color temperature and how appearance is altered at different color temperatures, a live demonstration of this phenomenon will be presented.

The goal of the presentation is to suggest that there is an underlying technical basis for color temperature selection that takes into account the fact that objects may be exhibited in a variety of different color temperatures. Most importantly, normal conditions of exhibition generally utilize a warm color temperature source whereas inpainting with northern daylight is done at a very cool color temperature. Research published by the author in conjunction with the National Institute for Standards and Technology will be described which will provide the basis for a theory regarding color temperature preference and its significance in the selection of an appropriate inpainting source.

Speaker(s)
SW

Steven Weintraub

Principal, Art Preservation Services, Inc.
Steven Weintraub (MA in Art History 1975, Certificate in Conservation 1976, NYU; BA, Colgate University) is Institute Lecturer at the Conservation Center (NYU), where he offers instruction in the Preventive Conservation course with Dr. Hannelore Roemich. Trained as an objects conservator, Mr. Weintraub is now in private practice specializing in the consultation, research and product development for the museum environment. He also lectures in... Read More →


Thursday May 29, 2014 5:00pm - 5:30pm
Bayview A-B

Attendees (133)