AF using 4/3rds converter
AF is slow to the point of being unusable for most lenses. They're absolutely superb lenses if you're fine with MF, but the only fast zoom that focuses acceptably is the Olympus 14-54mm f/2.8-3.5. It's still slow, but its much more useable than the others.
There is a MMF-2 as well. The MMF-1 is heavier. The MMF-2 is ligher. The MMF-3 is light like the MMF-2, but is also weather-sealed.