I try to stay under ISO 800 with the GH2. It has to much noise for my taste and requires clean up with denoiser.
Me, too. I use Neat Video (very lightly applied) if I have to go over ISO 800, but that's not an ideal solution (though the software's pretty impressive...). If the GH3 really can do 1600 cleanly, that ALONE would be a great feature.
