sentences:  The ME F represented a major advance in camera technology.It and the other first generation autofocus or focus indication 35 mm SLRs (such as the Canon AL-1 of 1982, the 1983 Olympus OM-30 (called the Olympus OM-F in the USA), or the Nikon F3 AF, also of 1983) were the beginning of a dominant breed of camera.However, none of these cameras were commercial successes as AF technology was in its infancy in 1981.