The current line-up of top Nikon D-SLRs offer a range of AF settings. The combination's in settings seem daunting at first. But with other settings on my D3 bodies, I keep it fairly simple. Instead of flip-flopping between numerous settings, I keep it simple by generally using the AF settings in just two ways. This depends on what whether my subject is static or moving.
First of, we're keeping manual focus out of this discussion. If you need to focus in manual for some reason, eg, doing macro work, the choice to do so will Read more inside...