Auf dem hochformatigen schwarz-weiß Foto steht der etwa zwei Meter hohe Licht-Raum-Modulator vor weißen Wänden. Auf einer Grundplatte sind Segel- und runde Scheiben aus verschiedenen Metallen sowie eine Glasspirale aufrecht installiert. Übergroß fällt der Schatten der Skulptur auf die rechte Wand.
After László Moholy-Nagy left the Bauhaus in 1928, he continued to work intensively on the possibilities of composing space by means of light in his Berlin office. It was during this period that he created the device later known as the Light-Space Modulator. This moving device consisted of a circular base plate with various elements made of transparent or reflective materials mounted on it. As the device rotated continuously, it was illuminated by more than seventy electric light bulbs, some of them coloured. The reflective and translucent materials projected diverse patterns of light and shadow into the space around them. Moholy-Nagy attempted to capture this effect in his abstract film “Lichtspiel schwarz-weiß-grau” (“Light play black-white-grey”) , which premiered in March 1930 at the “Kamera Unter den Linden” cinema in Berlin.