Diffusion sheets as dodging devices. Frederick Sommer. Key thinker. And he was very much a thinker; about photography in the specific and in the other bigger container.

Art is not arbitrary. A fine painting is not there by accident; it is not arrived at by chance. We are sensitive to tonalities.
The smallest modification of tonality affects structure. Some things have to be rather large, but elegance is the presentation of things in their minimum dimensions
Frederick Sommer General Aesthetics, 1979

Words not spent today
buy smaller images tomorrow
Frederick Sommer(Aperture, 1962