Canon just broke another world record. The company announced that its total production of RF and EF lenses has surpassed 170 million units, a number no other camera maker in history has reached. But behind this jaw-dropping figure lies an important story, the transition from the classic EF mount to the modern RF mount that’s redefining Canon’s future.
Source: Canon Hits 170 Million Lenses: What Makes RF and EF Mounts So Different? – Y.M.Cinema Magazine