Nikon D300 AF-AreaMode, Mode, Description, AF-areamode selector

AF-Area Mode

AF-area mode determines how the focus point is selected in autofocus mode. To select the AF-area mode, rotate the AF-area mode selector.

The following options are available:

AF-area mode selector

N	Mode	Description
	K	User selects focus point manually; camera focuses on
		subject in selected focus point only. Use for relatively static
	Single-
		compositions with subjects that will stay in selected focus
	point AF
		point.
		• In continuous-servo AF (pg 62), user selects focus point
		manually; if subject briefly leaves selected focus point,
		camera will focus based on information from surrounding
	I	points. Number of focus points used can be selected from
		9, 21, and 51 using Custom Setting a3 ([Dynamic AF area],
	Dynamic-
		pg. 269). If [51 points (3D-tracking)] is selected for Custom
	area AF
		Setting a3, focus point will be selected automatically
		using 3D-tracking.
		• In single-servo AF, user selects focus point manually; camera
		focuses on subject in selected focus point only.
		Camera automatically detects
		subject and selects focus point. If
		type G or D lens is used, camera can
	H	distinguish human subjects from
	Auto-area	background for improved subject
	AF	detection. In single-servo AF, active
		focus points are highlighted for
		about one second after camera focuses. Active focus points
		are not displayed in continuous-servo AF.

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