Argus C3 - The brick, as it was/is affectionately named, carried on the A&#39;s tradition of democratizing Leica&#39;s technology in an affordable, reasonably spec&#39;d camera.  One of the best selling cameras of all time, the C3 introduced interchangeable lens and rangefinder focusing to the mass American audience. Although targeted directly at the enthusiast the C3 was, nevertheless, capable of very professional results.  (photo by the other Martin Taylor)