Originally posted by zan Why just an E-M1? I would buy an E-M10 mark II. Is there any difference regarding adapters?
The adapters are the same, but autofocus systems differ. E-M1 is the only olympus in lineup that has an on-sensor PDAF for tracking and four-thirds lenses. This means the FT lenses focus about as fast on an E-M1 as on the old dSLRS. The tracking AF is supposed to be pretty good as well, and miles ahead of CDAF systems in E-M5 line. One thing of note is that E-M1 had a recent firmware update, which supposedly made the tracking AF a lot better, but this wouldn't be mentioned in online reviews. E-M1 II is probably going to be excellent, because they can utilize 20 megapixels of contrast data and PDAF at the same time, and they dedicate a whole image processor just to AF.