I decided to hang on to my 14-140mm lens for use on the OMD EM5 just in case DxO released an optics module for it. Well now they have. I've only briefly looked at a few shots but the results seem most promising. CA is lo longer an issue. Distortion, particularly at wide focal lengths is largely sorted. Sharpness and contrast are significantly better. Therefore, as a walkabout combination, the OMD EM5 + 14-140mm makes for a pretty impressive combination. Yes, the Olympus equivalent lens is lighter, but with a Panasonic GH1 as backup the Pany lens makes more sense for me. I'll try to post some examples later.