Back in 1994, Kodak had a focal length reducer just like the Metabones SpeedBooster that made them famous.
Back in the 1990s, digital photography was really still just getting its foothold and engineers were trying to figure out a whole number of problems and issues. It was done in a similar way to how the Metabones SpeedBooster gave cameras the ability to use lenses for larger format sensors while both providing more light and field of view. Except for Kodak, it was to solve a significantly bigger problem around significantly smaller sensors. Before most cameras used CMOS sensors, they used CCD sensors–and really small ones too. The sensors in those cameras would be laughable today for the professional photographer, and one of the big problems that needed to be solved was using available lenses.