This article is from the Yashica SLR FAQ, by cg@evrl.xs4all.nl (Cees de Groot) with numerous contributions by others.
For some reason, Yashica has a system consisting of what looks like a
modified 109MP body, a macro lens and a ring flash especially for
medical use. It's horrendously expensive, like everything made for
dentists. The current version is documented on Yashica's website under
http://www.yashica.com/yashica/dental.
 
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