>> View collection Since the 1910s, Oskar Barnack – inventor of the "Leica" camera – has documented the activities around Wetzlar (Germany) with his self-constructed camera. He filmed floods and town fairs, medical experiments, sporting events and the company that employed him as a chief engineer: the Optical Works Ernst Leitz in Wetzlar. His films are the cadre of a film archive that gives local history the same importance as the results of major historic events.