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Veteran
A new video on YouTube compares the GR with the GRD III. The lens extension sound is much more discreet, but the shutter sounds louder. I am not sure if the camera sounds have been turned off. Focusing is darn near silent, and pretty fast. It hunts a bit, particularly in close ups and macro, but focuses very quickly at longer distances.
http://www.youtube.com/watch?v=ciW8U8makzo
http://www.youtube.com/watch?v=ciW8U8makzo

