These pictures are problematic in that they challenge our sense of what qualifies as the subject of an artphotograph, and how it ought to be presented.
Yet by the turn of the century, when anyone could take a snapshot with their lightweight Kodak, the seemingly secure position of the photograph among art collectibles was again changing.
Ms. Buell, whose great uncle is Napa vintner Robert Mondavi, bought her first work ofart when she was 15, a Michael Kenna photograph she had written about for an English class.