Complex sentence: The FA was a battery powered (two S76 or A76, or one 1/3N) electromechanically controlled manual focus SLR with manual exposure control or aperture priority, shutter priority and programmed autoexposure.
Split into simpler sentences: The FA was a battery powered (two S76 or A76, or one 1/3N) electromechanically controlled manual focus SLR with manual exposure control. It also featured aperture priority, shutter priority and programmed autoexposure.