Version 1.3 improves auto white balance and general performance of the camera. It also rectifies minor operational issues. The latest version will be made available for download on the 1 June, 2009.
It is difficoult to judge the test. We do not know how the image has been postprocessed and which kind of lens has been used. There are clear difference in sharpness and color rendition. The Cano 5d stills looks gorgeus but I bet the GH1 is far better with camera in movement. I hope to have the chance to try the GH1 soon in order to make a professional comparison with the Canon.
The lesn has been reviewed by slrgear. It is a spectacular lens!
So may you want to make yourself a present (and at the same time support our website) by preordering the lens at amazon clicking the following logo: