Paul Naumann
Leica has always Rangefinder (ranging linked) camera popular, but the face of these external challenges, and a variety of advantages of SLR cameras, so Leica is also the realization that high-level SLR camera is a must need to start production in order to avoid market The Leica SLR cameras can not see the share. : As early as 1952, two young engineers: Karl Cloes and Paul Naumann began the first Leica SLR reflex camera research and development. Leica SLR - The early progress is very slow, because the senior staff of the Leica R & D funding for the deployment and SLR cameras for the franchise at that time the audit is the first Leica SLR slow down the progress of the main reasons.
Sourcs - [www.leicafanclub.org/report/leica-r-history1.htm]