Robert Hirsch is a photographer, writer, and the Director of Light Research (lightresearch.net). His books include Seizing the Light: A History of Photography, Photographic Possibilities: The Expressive Use of Ideas, Materials, and Processes, and Exploring Color Photography. Hirsch is a former Associate Editor for Digital Camera (UK) and Photovision Magazine, and a contributor to Afterimage, exposure, Buffalo Spree, Fotophile, FYI, History of Photography, Ilford Photo Instructor Newsletter, and The Photo Review, as well as former Director of CEPA Gallery.