[en] Several factors relevant to the perception of depth in stereoscopically televised remote environments are discussed. A geometrical model describing retinal disparities produced by stereoscopic TV systems is briefly discussed and experimentally tested for various configurations of camera separation and magnification. Operator visual fatigue induced by these configurations is also measured. Although geometrical configurations do affect perceptual performance, they do not affect it in a manner consistent with the simple geometrical model. Rather, observers appear capable of perceptual adaptation, benefitting from enhanced disparities when they are available. No differences in visual fatigue were found for any of the camera configurations tested