Very often (too often, to my taste) I have been photographed and knew it. Now, once I feel myself observed by the lens, everything changes: I constitute myself in the process of “posing,” I instantaneously make another body for myself, I transform myself in advance into an image. This transformation is an active one: I feel that the Photograph creates my body or mortifies it, according to its caprice (apology of this mortiferous power: certain Communards paid with their lives for their willingness or even their eagerness to pose on the barricades: defeated, they were recognized by Thiers’s police and shot, almost every one).
– Roland Barthes – Camera Lucida. Reflections on Photography