|Andrew Langton with the GH1 and a 35mm S.S.C. lens (I think).|
|Canon T2i with newer Canon 50(?) mm.|
The Panasonic GH1 also has flare "spikes". I think that is the camera itself and the way it handles highlights.
Overall, to my eye, this footage from each camera is color-correctable into the same world, making the GH1 and the Canon T2i compatible for multi-camera shooting.
And lastly note that the GH1 is a "four-thirds" camera while the T2i is APS-C — which makes the same length lens on the GH1 seem "longer" than what it would be on the T2i.