Users can opt to focus manually or can take advantage of the full-time AF while recording to help ensure faces are in focus or track a moving subject.

ENGADGET: Nikon unveils lightweight, full-frame D600 DSLR -- hands-on and low-light samples (video)

The GF6 boasts high-speed, high precision Light Speed AF (auto focus) including practical full-time AF and tracking AF is available for video recording.

ENGADGET: Panasonic Lumix GF6 announced for the US, shipping in June for $600