The first time I tried to use my Olympus M.Zuiko 12mm lens, I touched the screen to have it focus, and I got this error: MF mode, auto focus disabled by InterMurph posted Oct 22, 2015 at 4:43 PM The app was in auto-focus mode, and the lens doesn't have an AF/MF switch like the DJI 15mm lens does. But the lens was, in fact, in manual-focus mode. As it turns out, the Olympus M.Zuiko lenses have a "snap ring" that changes between manual focus and auto focus modes. When the focus ring is snapped away from the front of the lens, it reveals a distance scale, indicating that it is in manual-focus mode: Manual-Focus Mode by InterMurph posted Oct 22, 2015 at 4:55 PM And when the focus ring is snapped toward the front of the lens, it covers the distance scale, indicating that it is in auto-focus mode: Auto-Focus Mode by InterMurph posted Oct 22, 2015 at 4:56 PM So I snapped the ring toward the lens, putting it in auto-focus mode. I was then able to focus by touching on the screen as expected.