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Chemical Imaging of Works of Art at the Macro Scale: Visible and Near Infared Reflectance Spectroscopy of Paintings and Works on Paper

John Delaney, senior imaging scientist, National Gallery of Art, Washington, DC, explains what reflectance imaging spectroscopy is, the types of information that can be gleaned from it, and the ideal cameras for studying works of art. Delaney spoke at a one-day symposium held at the National Gallery of Art on September 21, 2015, which was supported by The Andrew W. Mellon Foundation.