Harun Farocki was a profoundly influential German filmmaker, essayist, and visual theorist whose work fundamentally challenged how we understand images and their operational logics. His intellectual contributions went far beyond traditional filmmaking, diving deep into the relationship between technological systems, visual representation, and power. Central to Farocki's thinking was the concept of the 'operational image' - images generated and used by machines, not primarily for human perception, but for computational processing and decision-making. These images exist in technological domains like military reconnaissance, industrial production, and surveillance systems, operating beyond human visual comprehension. His films and video essays frequently explored how technological systems create and manipulate images, examining the hidden architectures of visual production. He was particularly fascinated by how images function as instruments of control, documentation, and algorithmic reasoning - well before contemporary discussions of AI and computational vision. Farocki's work anticipated our current moment of machine-mediated perception, where images are no longer simply representations but active computational entities. His insights resonate powerfully with emerging Design Fiction practices that examine how technological systems reshape human experience.