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" Photography has powers that no other image-system has ever enjoyed because, unlike the earlier ones, it in not dependent on an image maker. However carefully the photographer intervenes in setting up and guiding the image-making process, the process itself remains an optical-chemical or electronic one, the workings of which are automatic, the machinery for which will inevitably be modified to provide still more detailed and, therefore, more useful maps of the real....The primitive notion of the efficacy of images presumes that images possess the qualities of real things, but our inclination is to attribute to real things the qualities of an image "

Susan Sontag