Nikon D2Xs - Manual (Page 96)

82
Taking Photographs—Focus
Focus Lock
Focus lock can be used to change the com po si tion after focusing, making
it possible to focus on a subject that will not be in a focus area in the fi nal
composition. It can also be used when the autofocus system is unable to
focus (
84 ).
In single-servo AF, focus locks automatically when the in-focus indicator (
●)
appears in the viewfi nder. In continuous-servo AF, focus must be locked
man u al ly using the AE-L/AF-L button. To recompose a photograph using
focus lock:
1 Position the subject in the selected focus area and press the shutter-re-
lease button halfway to ini tiate focus.
2 Check that the in-focus indicator (
●) appears in the viewfi nder.
Single-servo AF
Focus will lock automatically when the in-
fo cus indicator appears, and re
main locked
until you remove your fi nger from the shutter-
re lease button. Focus can also be locked by
pressing the AE-L/AF-L button (see below).
Con tin u ous-servo AF
Press the AE-L/AF-L button to lock both fo cus
and exposure. Focus will remain locked while
the AE-L/AF-L button is pressed, even if you
later remove your fi nger from the shutter-re-
lease button.