I recently hacked the GH2 and shot this little film with the 100-300mm lens which is 200-600mm equivalent in 35mm terms. I am very impressed by the fact that the image is so steady at 600mm handheld with no support and also the footage is so clean even after grading. I used the nostalgic picture profile, -2 -2 +2
I also shot in 720p at 60 frames and converted all clips to 24p in cinema tools. I am once again in love with this camera even though I have a 5dmk2.