The Panasonic GH2's built-in flash has a Guide Number rating of 45.6 feet (13.9 meters) at ISO 160, translating to a range of about 11.4 feet at f/4 and 7.9 feet at f/5.8 with the kit lens.

The Panasonic GH2 produced full-autofocus shutter lag (with the subject at a fixed distance) that ranged from 0.241 at full telephoto to 0.273 second at maximum wide angle with the 14-140mm kit lens.