The anteroom1^,2 is not only an architectural space, but also a location in the field where analyst and patient meet in a different frame of mind from the therapeutic attitude that characterizes their relationship in the consulting room. Drawing a parallel with the variations in perception generated by the camera obscura in the experience of a painter, the author investigates how new aspects of the conscious and unconscious relationship between analyst and patient can emerge within a different setting. Observation of these variations suggests the possibility of regarding the setting no longer as an invariant of the field, but instead as one of the factors that can actively mold the analytic relationship.