I have absolutely no clue about 3D anything with the Panasonic GH2, but the optional 3D Lens which normally runs for $269 dollars, is now on sale for a limited time for just $69 dollars ($200 off). [Thanks jodybd] If you're experimenting with 3D photography on the GH2, there's no better lens and no better deal. Check it out at B&H (click here).

Panasonic GH2 3D Lens for Micro Four Thirds GH2