So I bought a 40-150mm Olympus Zuiko lens and an adapter, and am trying it out on my GX1. I followed the camera's advice and switched to "take pictures with no lens" because the camera didn't recognize it. My problem is focusing. When I try to focus the lens manually (or otherwise) nothing happens. Everything remains blurry. I can get some accidental focus in some situations by adjusting the zoom a little. Am I doing something obviously wrong or is there a reason BH Photo had this on closeout?