(FT5) GH3 has fastest AF of the world. It is like a pro DSLR. Best hybrid cam ever (Source report) | 43 Rumors
1) Ergonomy: The GH3 is bigger and heavier, it is built like a tank! Panasonic clearly wants to give you a “DSLR feeling” going away from the “smaller is better” philosophy. It feels much more PRO than the Olympus E-M5. De facto it looks more similar to a PRO DSLR like a Nikon D7000 or Canon 7D more than to any other Panasonic/Olympus mirrorless camera we have seen before.
2) Specs: While he can’t unveil the specs he said that Panasonic improved any aspects of the camera. They really studied the feedback they got from Photographers and Filmmakers using the GH2. So almost everything you wished to have on a GH3 will become truth. The sensor gets on market with the “Wide Dynamic Range” definition while the Autofocus is said to be the fastest of the whole interchangeable camera world. Video specs and features are the best he ever saw on these kind of cameras. While there was no chance to analyze the stills quality he got the chance to see some videos made with the GH3. Definitely a leap forward!
3) Connectivity and accessories: The GH3 is all about getting connected. There are many physical and wireless connection possibilities. Filmmmakers are going to have all the connections they need for a professional production.