so I picked up this lens from a local camera store used. Really cheap. Under 300.00 I tried it with my 7rii and mc-11, did not focus, tried it with my 7rii and fotodiox adapter, did not focus. Tried it with my 7ii and the Mc-11 did not focus. Tried it with the 7ii and the fotodiox adapter and BINGO Here are my first couple shots as I made my way to the zoo.