At the heart of Sara VanDerBeek s two-dimensional and installation-based work is a fascination with photography s power as a form of mediationbetween past and present, original and reproduction, and perception and thought. Her latest exhibition Lace Interlace at The Approach in London draws on her research into the work of early British photographers Julia Margaret Cameron (181579) and Isabel Agnes Cowper (18261911) at that city s Victoria and Albert Museum.