DXO published the Pen-F sensor tests yesterday, giving it a rating of 74, the highest yet for an Olympus body. The OMD EM5 MKII and EM1 were rated at 73, so not a big difference. Link here: Olympus PEN-F Sensor Review: Style and substance | DxOMark However what I found most interesting is that the EM1 still has the best Dynamic Range of any Olympus M4/3 camera, 12.7 stops vs 12.4 for the EM5 MKII and 12.35 for the Pen-F at the base ISO (Which they measure lower than 200 for all 3 bodies). And Olympus stated in one of the Photokina interviews that the DR has been improved in the new EM1 MKII by a stop. So it seems we may see the new sensor have over 13 stops of DR!