Greetings All, I use an Panasonic FZ5 to take pictures for my articles. It's all outdoor stuff. My questions is what's the difference between 1 or 3-area High Speed autofocus mode? What are the advantages of one over the other? If I pick 1-area do I pick the area verses 3-area where the camera picks it? Am I even on the right track? Thanks for your help.