It is true that with technical images another factor places itself between them and their significance, i.e. a camera and a human being operating it (for example, a photographer), but it does not look as if this ‘machine/operator’ complex would break the chain between image and significance. On the contrary: The significance appears to flow into the complex on the one side
(input) in order to flow out on the other side (output), during which the process – what is going on within the complex – remains concealed: a ‘black box’ in fact.

Vilem Flusser, towards a philosophy of photography, 1983