Mertens J
HNO. 1985 Jul;33(7):328-31.
Photographic documentation is an important part of endoscopy. A flexible endoscope of small diameter, developed for special use in ENT is described. The resulting photographs fill the slide ("format filling"). This new objective combination fulfills the requirements of endoscopic construction and permits good photographic documentation of concealed parts of the ear, nose and throat which cannot be achieved by conventional rigid endoscopes.