Here’s a commercial Vivitar ran about a decade ago to convince older picture-takers to switch back to simple film cameras from the frustrating world of digital.
As the Leica cameras got more sophisticated, engineers recognized that the light meter in the camera displayed a sensitivity to contrast. A frame looked the most contrasty when in focus, Richter said. This observation paved the way for autofocus technology. Leica used its Leicaflex SL2 for the autofocus prototype and equipped a 50 mm lens […]