Now that ACR has preliminary support for E-M1 raw files – amongst a whole load of other cameras – in ACR 8.2 (available here for Mac and Windows), I’ve gone through and reprocessed a few to assess the RAW quality of the E-M1’s sensor; I expect to have more thoughts on this in the longer term after I have a chance to put the camera through a greater variety of scenarios. Sadly, my loaner went back yesterday, so further updates after this one will have to wait until my own cameras arrive in October.