Nikon 25214 D70 User's Guide - Page 80

Focus Lock, Autofocus

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Taking Photographs-Focus Focus Lock Focus lock can be used to change the composition after focusing, making it possible to focus on a subject that will not be in one of the five focus areas in the final composition. It can also be used when the autofocus system is unable to focus ( 73). When AF-S is selected for Custom Setting 2 (Autofocus; 139), focus locks automatically when the in-focus indicator (●) appears in the viewfinder. When AF-C is selected, focus must be locked manually 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-release button halfway to initiate focus. 2 Check that the in-focus indicator (●) appears in the viewfinder. AF-S (Single-servo AF) Focus will lock automatically when the infocus indicator appears, and remain locked until you remove your finger from the shutterrelease button. Focus can also be locked by pressing the AE-L/AF-L button (see below). AF-C (Continuous-servo AF) Press the AE-L/AF-L button to lock both focus and exposure. Focus will remain locked while the AE-L/AF-L button is pressed, even if you later remove your finger from the shutter-release button. 70

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70
Taking Photographs—Focus
Focus Lock
Focus lock can be used to change the composition after focusing, making it
possible to focus on a subject that will not be in one of the five focus areas
in the final composition.
It can also be used when the autofocus system is
unable to focus (
73).
When
AF-S
is selected for Custom Setting 2 (
Autofocus
;
139), focus
locks automatically when the in-focus indicator (
●
) appears in the viewfinder.
When
AF-C
is selected, focus must be locked manually 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 initiate focus.
2
Check that the in-focus indicator (
●
) appears in the viewfinder.
AF-S (Single-servo AF)
Focus will lock automatically when the in-
focus indicator appears, and remain locked
until you remove your finger from the shutter-
release button.
Focus can also be locked by
pressing the
AE-L/AF-L
button (see below).
AF-C (Continuous-servo AF)
Press the
AE-L/AF-L
button to lock both focus
and exposure.
Focus will remain locked while
the
AE-L/AF-L
button is pressed, even if you
later remove your finger from the shutter-re-
lease button.