17-29 Manila.Copal glass.jpg
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Manila copal
Normal (left) and UV (right) reflected light images of Manila Copal on a glass slide over a black background 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 | 16:48, 20 April 2013 | | 1,200 × 536 (125 KB) | Maintenance script (talk) | Importing image file |
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