Is there a chart or graph that shows which adapter is used for legacy lenses? There are so many different lenses I would like to try on my E-P2 but don't know which adapter to use. It would be nice to find one that will allow you to use a wide variety of glass. Such as, which adapter would you need for a Contax 50mm Planar T lens? Could the same adapter be used for Voightlander M mount lenses???