67-85 Copal.Varnish canvas.jpg
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Copal Varnish
Normal (left) and UV (right) reflected light images of Copal Varnish prepared on canvas to illustrate the color of the substance along with presence or absence of autofluorescence. Normal light = Halogen lamp (100 W, no filter); UV light=Mercury gas discharge lamp (100W, excitation filter=340-380nm, suppression filter=425 nm). Image credit: Scientific Research lab, Museum of Fine Arts, Boston
Sample from the Gettens Collection of Aged Pigments and Media, Straus Center for Conservation, Harvard University Art Museums.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:18, 24 July 2013 | | 1,200 × 809 (128 KB) | Maintenance script (talk) | Importing image file |
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