Did you shoot Raw or Jpeg? Oly and Pany m4/3rd's bodies do a lot of in-body correction when outputting jpeg files (although I am not certain about distortion). If you shoot raw and post-process in programs like Lightroom, you may have to manually correct some things. That said, I do not have this particular lens, so I cannot give you any personal feedback. Also note that corrections do not occur when cross-mounting Pany and Oly lenses (if you have any Pany lenses or bodies). They share the same mount and electronics, but the "special sauce" of corrections is still kept under wraps.