The Wide-Area focus brackets delineate the focus detecting area in the viewfinder. Subjects of sufficient brightness and detail can be detected within these brackets. In addition to general photography, autofocus using Wide-Area focus brackets is suited to action photography in which the moving subject requires a wide-range focus detection area. However, focus detection may not be possible if the subject is too small to fully cover the Wide-Area focus brackets. If various subjects, each at a different distance, fall within the focus
detection area, focus will be confirmed for a single subject as follows:
oFor subjects of equal brightness: the closer one will be focused .
oFor subjects of unequal brightness: the brighter one will be focused.
Spot Area AF, in which the focus detecting area is shown by the 3mm-dia. circle at the center of the viewfinder, is recommended in the following situations:
a.Subject considerably smaller than the Wide-Area focus brackets'
b. Subject obscured by an object, such as a fence, in the foreground
c . A particular portion of the subject must be in focus, such as the eyes in a portrait
d . Strongly backlit subject, such as someone standing beside bright window"
• Use focus lock. See "AUTOFOCUS WITH MAIN SUBJECT OFF CENTER" on pages 40 to 43.
.. To give correct exposure on your subject, see "AE-L LEVER" on pages 88 to 89 or 'TOOBTAIN METER READING FOR A PARTICULAR SUBJECT IN MANUAL EXPOSURE MODE" on pages 90 to 91 .
