I found this remote shutter while cruising ebay. http://www.hahnel.ie/QR/compatibleModels.cfm?id=105 I like that it is wireless and has a name to it more than the China stuff. But what I can't figure out is if it works with my GH2. It says that it works with the GH1 and the GH3, but skips the GH2. What does the GH1 & 3 have that the 2 doesn't?? Thanks!