I have searched and not found specific auto focus setting for the EM-1 for best focus tracking of moving subjects. Especially using 4/3rds lenses with the EM-1. I have found several threads for the OM-5, but I am assuming the EM-1 would allow some different settings to better allow the PDAF to work with Olympus legacy lenses. I would be interesting in learning what other folks have done to get the best performance for the 50-200SWD for moving subjects with the EM-1. Thanks much.