The affective turn in photography theory takes as its point of departure Roland Barthes's move from semiology to affective phenomenology in Camera Lucida. This article, however, considers the way affective phenomenology is itself grounded in the semiological structure of photography. It looks at how, before Camera Lucida was even written, Thierry de Duve had already discussed the affective implications of Barthes's understanding of photography's indexical nature. The article then proceeds to rethink the structural affectivity of photography beyond Barthes's and de Duve's emphasis on a direct relation between indexicality and loss. Reconsidering photography through Jacques Ranciere's conception of the aesthetic regime of art, the article rather puts emphasis on the indeterminacy of photography, which results from the way the camera captures and isolates a spatio-temporal fragment. Shifting the focus from indexicality to indeterminacy sheds a different light on the loss implied by the structure of photography, parallel to how Freud understood the difference between mourning and melancholy.
