Zuiko 12-60 SWC on a Oly OM-D...AF?
I'm also using this combination a lot. Yes it does autofocus - perhaps 1-2 seconds typically. However I find myself using manual focus almost all the time. With stabilization and automatic magnification of the focus area, it's pretty easy to achieve very precise focus. If the subjects were changing distance quickly, I think I'd struggle - but for landscapes it's great.