I wondered why so many adapters for C-mount lenses, when these are--at best--marginally adapted to our cameras. Seriously, does anyone actually shoot true movies with these 8 to 16 mm should-have-been-recycled? So I looked for Arri(flex) PL-mount adapters, bumped in the ads of a wild and crazy Polish guy, homebrewing pro cinema lenses converters for Canon SLRs and :43:. Like, if you have a Zeiss (Germany, not the Kyocera/Sony or Cosina stuff they label in Japan for us gullible stills photographers...) Fast Primes set, or forgot some Panavision glass in a drawer, why not use these "legacy" (heritage, rather?) diopters on our cameras, costing the price of their lens shade? Anyway, it looks superb: Zeiss Arri PL to micro 4/3 camera GH1 E-P1 AG-AF100 G2 | eBay This being only one example--he doesn't have an eBay store yet, but check his other products. I love craftsmen.