Thanks for the link Steve. I had missed that article. It illustrates many of the options very well.
Another Alpa option is their
Silex Mk II control unit which provides use and control of the
leaf shutter in Hasselblad HC/HCD lenses. It will be interesting to see if anything comes from the statement —
"ALPA of Switzerland is celebrating the start of its collaboration with Hasselblad by launching the ALPA 12 STC Silver Edition, numbered and limited to 50 pieces worldwide." The "collaboration" in this case may simply mean one or more special editions with cosmetic differences. They could mean something more substantial, but time will tell.