This 1939 Cutaway Diagram Shows the Anatomy of a Leica Camera
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.