mkln said:yes, it is aperture only, but apparently it powers the MF motor of the 85 II.
the 85 doesnt have mechanical MF, it needs electricity.
btw I tried my $20 EF adaptor (I use it for a nikon lens, long story) with the 85
and... well let's say that I may change my mind... the 85 dwarfs the camera and the adapter looks kinda ugly. here are some pics. http://imgur.com/a/vEJhQ#0
the nex may be amazing but it probably wouldnt feel right to walk with nex+85L. I'll stick to vintage lenses.
The EF lenses I use on a small m43 body (GF2) are the 35mm f/2, the 50mm f/1.4 and the 135mm f/2. The 35 and 50 look quite proportional (the 50 is a nice portrait lens on this body), the 135 looks big but at 270mm effective focal length, it's a supertele so I don't really expect it to look proportional.