I was looking at my AF Nikkor, the kit lens on my old N60 film camera, but I don't see a focus ring, it is totally automatic. Could this work on a MU43 with an adapter, or do I need to able to focus manually? I have old screw mount lenses too, Yashica and a bad Vivitar T4 zoom. Will these work too? When I pulled out the camera my kids were amazed that we owned such a thing as they'd never seen it. But we took lots of pics of them with it, and it isn't as old as they think, probably only 15 years or so.