With the arrival in 1911 of Oskar Barnack, an optical engineer, and Max Berek, a newly-trained professor in mineralogy and mathematics in 1912, conditions were created for the greatest innovation since the invention of photography : The invention of the portable camera.
This is how, in 1913, Ur-Leica was created, the prototype that will lead to the dawning of a new era in world photography. The photographs taken with this machine proved to be of exceptional quality, and in 1914, Oskar Barnack constructed a new prototype that Ernst Leitz would take on a trip to New York during which he took numerous photographs.