As far as I know to avoid banding with the e-shutter you must shoot at multiple of the powerline frequency (50hz here). Because of the rolling shutter and all of that. Fine. These are my results (shooting a white wall with the E-M1): 50 ok! 60 banding 80 banding 100 ok! 125 banding 160 banding 200 banding <--- ??? 250 banding <--- ??? 500 banding <--- ??? worst of all I suppose this is limited by the sensor readout speed but I do not know how (and it's midnight and I'm too tired to figure it out). Any ideas?