It comes from HAWKS Factory in Taiwan, I should've bought this adapter before
spending lots for E-mount ones since any adapters for µ4/3 work on NEX3/5 too.
The flange is 1.3mm thick, a bit too thin to make a perfect one since E-mount register
distance is 18.0 mm whereas µ4/3 has 20.0 mm register distance. And you have to
take the whole assembly of this and lens from NEX to be able to change the lens. :(
Mechanically it is not a great piece of work, some play exists with the m4/3 mount.
(Using this adapter to make Minolta Portable Bellows for E-mount one 2012-Mar-02)