Above: Ichiro Kitao, product planner for Panasonic Lumix. Panasonic did a fantastic job on the GH1’s hardware, and it’s software is an impeccable creation, with really easy to use functionality. Now Tester13’s software PTools allows us to change a limited set of variables in the GH1’s firmware. It doesn’t recode anything complicated, create any new functionality or restructure anything. It’s simply doing this: