I have changed Minolta portable bellows's mount to E-mount. Of course you can
change it back to Minolta SR-mount. The photo shows this lens's infinity position
with L39->M42 + M42->SR mount adapters together, will get an L39->SR adapter.
When the bellows is extended to its max, this setting gets to 0.33m as its MFD.
The side view of bellows > http://www.pbase.com/kkawakami/image/141908320