I’ve had time to play around with the Panasonic Lumix GH2 and found it to produce stunningly detailed video, particularly with the firmware hacked. In my opinion the camera produces more detailed video with less moire the 5D mk2, however there still seems to be some issues with the 25p and 30p modes, whilst they are progressive they seem to be encoded in fields, leaving odd interlacing artefacts when pushing a grade. Also Lumix lenses tend to over sharpen video due to various distortion and CA correction in-camera. Ultimately though I’m massively impressed with this camera and the quality it can produce in the right situation.
Here’s another video on a more cloudy day. Click through to the vimeo page for more information on which hacks were used etc.