It was a time of transition. I had been using a Canon F1 (original) system for years - two cameras with MF motors, 20, 35, 85, and 200 lenses, and was satisfied. Then I sold the weekly newspaper I owned and Canon transitioned to the EOS cameras and mounts. So I ditched the Canons, bought into the Olympus OM system, didn't gel with them, and turned to Nikon. During all that, still had an M4 and several rangefinder lenses. Still have occasional regrets about dumping the Canon, done at lease on a partially emotional level to express my disapproval at being abandoned by a company whose products I had embraced. Don't think Canon knew or cared.