Nikon 1799 instruction manual Focus mode set to S or C, Characteristics of AF Area modes

Focus mode set to S or C

Do not attempt to rotate the lens focus ring manually while the focus mode is set to S or C, unless the lens is an AF-S or AF-I type AF Nikkor and is set to M/A mode.

For situations where autofocus may not work as expected, see page 60.

Characteristics of AF Area modes

	AF Area mode	Characteristic
g	Single Area AF Mode	Focus is obtained at your selected focus area out
		of 11 possible choices.
		You designate the primary sensor (the first to
		detect the subject), then if the detected subject
h	Dynamic AF Mode	moves, Dynamic AF automatically shifts to the
		next sensor that detects the subject, following it
		by shifting among a progression of sensors as
		the subject moves.
		A group of neighboring focus areas at the
		center, top, bottom, left and right areas of the

fGroup Dynamic AF frame can be selected. Group Dynamic AF Mode

Modeautomatically maintains a focus on the subject

located closest to one of the focus areas within a group.

Dynamic AF Mode	Automatically selects one of 11 focus areas in
	which the closest subject is located. If the subject

jwith Closest-Subject moves from the selected focus area, the camera

Priority	will automatically focus on the subject using data
	from the other focus areas.

For details regarding focus mode, focus area and AF Area mode, see pages 48-61.

Basic Operation

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