Procedure and simultaneous control device for approach, framing and attitude by direct observation of the model in the production of photographs (Machine-translation by Google Translate, not legally binding)

摘要

Procedure and device for simultaneous control of focus, frame and attitude by direct observation of the model, in the production of photographs, characterized in that from a device coupled to the photographic machine two converging luminous rays are thrown, which when assembled form a predetermined place on the model to photograph an image of luminosity calculated to be annulled in the photograph by the light projected when making the shot, whose image has the property of being deformed, losing its symmetry or changing its position as soon as the model deviates from the focus and framing, being able to make it return quickly and continually to its state of origin by means of movements of the camera. (Machine-translation by Google Translate, not legally binding)