I have noticed something on both my ep1 and em5. There is a noticeable amount of grain in the slightly shadowy parts of my pics at even base iso. I don´t mind grain at all at higher iso, infact I like it if it has that filmlike feel, but at base iso I want clean, sleek files. I cannot see the same amount of grain on the files from my last camera, nikon d300. Yes, it has some, but it feels like less... I usually shoot raw, little or no noisereduction, simple processing in aperture. Anyone else made this observation? Any postprocess tips maybe? Or have I become a pixlepeeper? I can scrounge up a sample or two if anyone is curious. Not by the same subject, unfortunately, since I sold the d300.