Nikon 27631, 27619, S1 White, S1 Red, 27629 manual 130, AGetting Good Results with Autofocus

AGetting Good Results with Autofocus

Autofocus does not perform well under the conditions listed below. The shutter release may be disabled if the camera is unable to focus under these conditions, or the focus area may be displayed in green and the camera may sound a beep, allowing the shutter to be released even when the subject is not in focus. In these cases, focus manually (0 131) or use focus lock (0 134) to focus on another subject at the same distance, and then recompose the photograph.

There is little or no contrast between	The subject contains areas of sharply
the subject and the background.	contrasting brightness.
Example: The	Examples: The
subject is the	subject is half
same color as	in the shade; a
the back-	night scene
ground.	with point illu-
	mination.

The subject contains objects at differ-	Background objects appear larger
ent distances from the camera.	than the subject.
Example: The	Example: A
subject is	building is in
inside a cage.	the frame
	behind the
	subject.

	The subject is dominated by regular	The subject contains many fine details
	geometric patterns.	or is made up of objects that are small
		or lack variation in brightness.
	Example: Blinds	Example: A field
i	or a row of	of flowers.
	windows in a
	skyscraper.

ASee Also

See page 158 for information on controlling the beep that sounds when the camera focuses.

130