The Leica (Leitz camera) was developed by Oskar Barnack (1879-1936) while head of the experimental department at the Leitz company in Germany, and was... - SuperStock
Video: The story of Oskar Barnack, the inventor of the original Leica - Australian Photography
Oskar Barnack | International Photography Hall of Fame
Rare 0-Series Leica camera owned by Oskar Barnack expected to fetch over $2.6M at auction: Digital Photography Review