I'm using an FT Oly 50-200 with the MMF-3 on the Oly OM-D. This is the Mk 1 version of the lens FWIW. The focus time is not the issue it is simply that the photos are out of focus. I am using single-AF with the AFL on half shutter. The focus says it is locked but a lot of the time (more than 80% of my shots) the focus is either a bit or a lot out. When the shots are in focus, they are stunning. I am hand holding and I wonder if I simply need to use a tripod to achieve a better success rate? When it works the combo of this lens and body are everything I had hoped for. Suggestions are welcome.