Hi everyone. There is another thread in the Beginners Section about AF points, but sometimes threads there don't get enough serious traction. So all the new cameras have a huge amount of AF points - 9, 19, 51... but all I've ever done is used the center point. I focus, recompose, and shoot. Now, it occurs to me that there's some really useful functionality that I'm not including in my shooting. How do you all use the AF points? What can you tell the rest of us about them? My new camera even has a quick menu for changing AF points - why might I want to do that? Please advise.