Imagine a film cartridge with attached sensor, the idea went, which you could just drop into your trusty SLR and continue shooting digital ... at the focal plane in a camera designed for film.

While Leica gave the 35mm film format some respectability during the 1930a, 40s and 50s with its ... Prior to 1959, the 35mm SLR was primarily considered an amateur’s camera and, frankly ...