John Brawley tested the [shoplink 16254]Panasonic GH2[/shoplink] and the [shoplink 16841]AG-AF100[/shoplink] cameras. He complains one particular issue the AG-AF100 has:
“Listen to the noise picked up by the camera mike as I change the iris on the camera. It actually sounded worse to me than what was recorded in this clip This is a test clip shot on an AF 102 (AF100). that was done using the Olympus 7-14 and a Panasonic m4/3 adaptor. I tested it with a great many 4/3 lenses from both Panasonic and Olympus. They all make the same noise. The interesting thing is that the same lenses and adaptors on the GH2 didn’t seem to make the same noise.”
More at johnbrawley.wordpress.com