Nikon SB2G03(11) Manuel D’Utilisation

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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 a focus 
point in the final composition. If the camera is unable to focus 
using autofocus (
0 107), focus lock can also be used to recompose 
the photograph after focusing on another object at the same 
distance as your original subject. Focus lock is most effective 
when an option other than auto-area AF is selected for AF-area 
mode (
1
Focus.
Position the subject in the 
selected focus point and press 
the shutter-release button 
halfway to initiate focus. Check 
that the in-focus indicator (
I) appears in the viewfinder.
2
Lock focus.
AF-C focus mode (
0 97): With the 
shutter-release button pressed 
halfway (q), press the center of 
the sub-selector (w) to lock 
both focus and exposure (an 
AE-L icon will be displayed in 
the viewfinder). Focus will 
remain locked while the center 
of the sub-selector is pressed, 
even if you later remove your 
finger from the shutter-release 
button.
Shutter-release button
Center of sub-selector