Among other things, René Descartes's 1637 essay Optics romantically seeks to present vision as a mental function. For Descartes, words refer to objects and images imitate objects, and the medium of this second linkage is light. The medium of photography is also light.

This installation is a series of projected images - photographs of textual excepts from Descartes's essay. The excerpts were printed on white paper and photographed onto a strip of slide film. That strip of film itself is here projected onto a white wall from a slide projector mounted atop a six-foot tripod, at fifteen seconds per frame. This results in a mechanized, projected progression of a textual explanation of light and vision literally framed by photographic interpretation.