Complex sentence: A rotary dial selected the mode, changing between integrated & selective metering was effected by a small lens moving in front of the meter cell which was mounted in the camera base like previous models, but moved forward and angled towards the film plane.
Split into simpler sentences: A rotary dial selected the mode, changing between integrated & selective metering was effected by a small lens moving in front of the meter cell. The meter cell was mounted in the camera base like previous models, but moved forward and angled towards the film plane.