For decades, the soft blur of a professional lens—that quality of light that separates subject from world—belonged only to those who could carry the weight of serious equipment. Samsung's Portrait Video feature, arriving on the Galaxy Z series in 2026, represents a quiet but significant crossing: the optical soul of a large-aperture lens, reconstructed through AI and years of collaborative research, now lives inside a folding smartphone. It is the story of a photographer-turned-researcher whose 25-year passion became a tool for millions, and of two engineering teams who spent countless hours f