Thanks, Karl. I've got the 21mm Voigtlander and the finder, so I've thought along those lines. Problem is that the hot shoe on the SWC is forward of the back (of course), so it is impossible to get your eye up to the viewfinder. That's why Hasselblad made their finder in an elongated form, so the user's eye could actually reach the finder. I'm jury-rigging an alternative, in part based on a cool electronic level I bought in Germany, but it would be nice to have the original. Heck, even without it I've enjoyed using the SWC as a point-and-shoot, as the field of view is so wide, with significant depth of field.