Open tube, proximal illumination mirror and direct laryngeal photography.

Equipment is described for mirror and open tube direct laryngoscopic photography. It consists of specially constructed reflex camera systems that provide adequate exposure and depth of the desired field, sharpness of focus, correct color, and effective composition for meaningful illustrations. The separate cameras for still and motion pictures consist of units that contain the light source, lenses, optic reflex systems, and film chambers. The mirrors for indirect laryngoscopy and the open tube direct laryngoscopes are attached by rigid, easily released clamps for quick interchange. It is stressed that the laryngologist himself must be the photographer. The pictures are adjuncts to case recording, are supportive evidence of investigative work, and may be used as chronologic sequences in study of physiology and in pre- and postoperative evaluation.