Ok, I purchased a 50-200mm ED zuiko lens and naturally I need an adapter. The Olympus site shows a refurb MMF-3 for $99 but "out of stock". Ebay and Amazon have a few for well over $100 so I decided to buy a Fotasy adapter from Ebay. I have a couple of those for the manual legacy glass and they are OK. I wonder if I just wasted some time by purchasing this unit.... It does say that it's a replacement for MMF-1, MMF-2, MMF-3 and allows autofocus. Has anyone had experience with these units? Thanks!