Originally posted by stevebrot Mounts upside down (distance scale on underside)? That is interesting. Does it do this if you mount the adapter to the lens and then the both to the body and is the adapter fully engaged in the mount? It may be that your lens has been reassembled at some point with the mount 180 degrees from what it should have been.
Steve
yap distance scale on underside,. nope other lenses like vivitar 135/2.8 is correctly mount. i think it was reassembled wrongly because it got cleaning mark.
this is what it look like