Thanks for the comment. A lot of cameras are tested on the Olympus 12-40mm f/2.8. (We have measured 13 cameras for now)
The subject of this review was to provide all the good lenses for the Panasonic GX7, the 12-40mm is one of the best choice for a zoom.
If you are interested in Olympus OMD EM-1 results you can check our review here:http://www.dxomark.com/Reviews/Olympus-M.ZUIKO-DIGITAL-ED-12-40mm-F2.8-PRO-lens-review-Pro-worthy-performer
The DxOMark team