Sony’s Real-Time Tracking on the A7R V is a subject recognition system that identifies a subject on the first half-press and follows it regardless of where it moves in the frame. Paired with the FE 85mm f/1.4 G Master — Sony’s premium portrait prime — the combination exposes a technical asymmetry that still surprises photographers moving from older systems: the focus system is more capable than the optical depth of field allows it to demonstrate.