It's been a bumpy ride for Panasonic's GF line of Micro Four Thirds cameras. The GF1, an excellent mirrorless camera for its time, was soon replaced with a less-capable entry level model, the GF2. Then another, the GF3. And now, it's time to say hello to the GF5 (perhaps 4's the new 13?). For better or worse, the GF3 won't be going away -- it'll sit tight at its new $500 price point (with a 14-42mm kit lens), ready to confuse consumer
