Nikon 25464 D300S User's Manual - Page 290

a2: AF-S Priority Selection G button ➜ A Custom Settings menu This option controls whether Focus mode selector photographs can be taken only when the camera is in focus (focus priority) or whenever the shutter- release button is pressed (release priority) in single-servo AF. To select single-servo AF, rotate the focus mode selector to S. Option G Release F Focus Description Photos can be taken whenever the shutter-release button is pressed. Photos can only be taken when the in-focus indicator (I) is displayed. Regardless of the option selected, focus will lock while the in-focus indicator (I) is displayed. a3: Dynamic AF Area G button ➜ A Custom Settings menu If the subject leaves the selected focus point when dynamic-area AF (I; 0 76) is selected in continuous-servo AF (focus mode C; 0 74), the camera will focus based on information from surrounding focus points. Choose the number of focus points from 9, 21, and 51 based on subject movement (note that only active focus point is displayed in the viewfinder; the remaining focus points provide information to assist focus operation). Option c 9 points U Description If the subject leaves the selected focus point, the camera will focus based on information from the surrounding eight focus points. 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). 264