Guest Post by Benny Ng. In the beginning.. In the early 1900s, there was a man with a vision for portable photography. His name was Oskar Barnack, and in 1914, he created the Ur-Leica, forefather of the 35mm film format that we know today. This camera was also the cornerstone of the evolution of the rangefinder system of photography. In the early days of rangefinder photography, there were several manufacturers and quite a few differing formats of lens to camera interface as each sought to develop their own proprietary mount. Many of the early lens mounts were not coupled as …