Joseph Plateau, who invented the phenakistoscope, the first device capable of producing the illusion of a moving image from a sequence of still images, provided a definition of the persistence of vision in 1829. In his research into visual physiology, he described the effects of light stimuli and colors on the retina, determining their duration to equal one tenth of a second. Yet this value is not constant: it increases as the eye adapts to darkness, hence the sensation of movement which is characteristic of a film projection. Plateau thought that the eye sees at a rate of ten images per second and that, when they are superimposed, the brain links them into a single, continuous, moving image.

In the 1960s, WERNER NEKES (1944-2017) began making films and experimenting with different film stocks to scale the possibilities of the medium. Free from narrative and psychological aspects, the films are organized according to temporal units and structural systems as they focus on aspects of representation. In a direct dialogue to pre-cinematographic optical techniques – with different ways to create illusion of movement - Nekes referred to his films as ”light theater”.

Dore O.’s films seem to claim a certain uniqueness and independence from the dominant, yet diverse and irreducible currents of German experimental cinema. As the critic Dietrich Kuhlbrodt declared already in 1988: »Dore O. has become classic, and suddenly it turns out that her work has passed the various currents of time unharmed: the time of the cooperative union, the women's film, the structuralists and grammarians, the teachers of new ways of seeing ...