Rolleiner HFT 2.8/28 @ NEX-3

[LucisPictor]

Very nice lens! Unfortunately, I cannot get infinity wide open.
It's adapted to EOS (with that adapter that was sold here some time ago) and it just misses infinity on an EOS up until f/5.6.
It's a bit worse on the NEX, so I guess that the QBM-EOS-adapter is some fractions of a millimeter too long as is the EOS-NEX-adapter.
With only the EOS-NEX-adapter that does not have any consequences but with both adapters those inaccuracies add up and prevent infinity under f/8.

Never mind, I love to use this lens on my old 300D the most anyway and do have several excellent 28mm lenses for my NEX.
It was worth a try, though...