D800 Single-point AF vs. Normal AF

Ray Ritchie wrote:

It may be helpful to refer to Nikon's description of the purpose of the different modes in the User Manual. Here, for example, is an extract from the text that describes when to use the AF-S mode vs. the various Dynamic Area modes:

"Single point AF:...Use with stationary subjects

- 9-point Dynamic Area AF: Choose when there is time to compose the photograph or when photographing subjects that are moving predictably (e. g., runners or race cars on a track)

- 21-point Dynamic Area AF: Choose when photographing subjects that are moving unpredictably (e. g., players at a football game)

- 51-point Dynamic Area AF: Choose when photographing subjects that are moving unpredictably and can not be easily framed in the viewfinder (e. g., birds)"