sentences:  Asahi Optical turned away from AF and came out with the Pentax Super-A (Super Program in the USA), a less radical SLR also built upon the M-series chassis, but offering the much more mainstream features of programmed autoexposure and TTL autoflash, in mid-1983.The Super-A broke the tradition of being capable of batteryless operation.The ME F was quietly dropped from the Pentax lineup in 1984.