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Raving about UV Fluorescence

Late last week our lab hosted a 3-day workshop, taught by Jennifer McGlinchey Sexton, on Tools and Techniques for UV / Visible Fluorescence Documentation. Colleagues from libraries and museums around the country joined three DUL staff members to learn about the necessary equipment and to develop practical skills in capturing UV/visible images for use in conservation.

A great deal of the discussion centered around equipment. We looked at several kinds of UVA lamps that are currently on the market and talked about the filtering necessary on both lamps and cameras to reduce infrared and visible light. We also went over some methods for testing the quality of the lamp.

 Capturing UV/visible images can be challenging and while standards have been widely adopted in recent years for conservation imaging under normal illumination, the same is not so true for UV documentation.  Jennifer described several workflows for setting the white balance and selecting the best camera exposure settings using either home-made or standardized fluorescent color targets.

We had converted both our normal photo-doc space and the “dirty room” (our mold remediation and chemical storage space) into imaging work spaces, so the workshop participants were able to break up into two groups and practice. It was very useful to have two spaces and enough equipment that everyone could try the process several times and ask questions.

This workshop was a great opportunity to learn exactly how to add UV/visible to a conservation program’s documentation capabilities. It gave the participants a grounding in both the functionality of the equipment and a framework for consistently producing high quality images. For the Duke library staff who participated, this workshop also added some perspective to the work we have done in the last year or so with Multispectral Imaging.

We are so thankful to Jennifer McGlinchey Sexton for teaching, to Tess Bronwyn Hamilton for assisting, and to FAIC for sponsoring such a great experience!

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