When the Leica camera was born in the early 1900s, it was the first practical 35mm camera to use standard 35mm cinema film. In 1930, Leica introduced the Leica I Schraubgewinde, which used an interchangeable lens system based on the Leica LTM (Leica Thread Mount) 39mm screw thread.
Want a peek of the inner workings of Leica’s early LTM camera? Today’s your lucky day.
In its September 1939 issue, the publication The Cine-Technician... more