I haven't used this lens in a while, but the last time I did it worked just fine on my EM-5 (except for the expected focus lag). Now, however, when I put it on my EM-5, or my EM-1, nothing happens--the screen is black, like the camera's not detecting the lens. I've turned them on and off, and I've taken the 9-18 on and off both cameras--nothing seems to be helping. I'm not sure what to do at this point. I am using the electronic lens adapter 43-m43, and the firmware on both cameras is up-to-date. Does anyone have any thoughts on what is happening?