I just wanted to let you know I've got an article in this month's issue of Micscape Magazine, if you want to know more about the Disco Lights technique. There is oddly enough, a second article about epi-Rheinberg in the same issue.
http://www.microscopy-uk.org.uk/mag/indexmag.html
Mike
Darkfield reflected Rheinberg (Disco Lights Illumination)
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