Nikon D500 用户手册

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页码 428
103
AF-Area Mode
Choose how the focus point for autofocus is selected.
• Single-point AF: Select the focus point as described on page 108; 
the camera will focus on the subject in the selected focus point 
only. Use with stationary subjects.
• Dynamic-area AF: Select the focus point as described on page 108. 
In AF-C focus mode, the camera will focus based on information 
from surrounding focus points if the subject briefly leaves the 
selected point. The number of focus points varies with the 
mode selected:
25-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).
72-point dynamic-area AF: Choose when photographing subjects 
that are moving unpredictably (e.g., players at a football 
game).
153-point dynamic-area AF
*
: Choose when photographing 
subjects that are moving quickly and can not be easily 
framed in the viewfinder (e.g., birds).