Nikon Z 9 - F4: Control Lock

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Custom Settings: Fine-Tuning Camera Settings
Lock exposure settings or focus-point selection.
f4: Control Lock
G
button
U A
Custom Settings menu
Option Description
[Shutter speed lock]
Select [ON] to lock shutter speed at its current value
in modes S and M.
•
O
icons appear in the shooting display and control
panel when shutter-speed lock is in effect.
[Aperture lock]
Select [ON] to lock aperture at its current value in
modes A and M.
•
O
icons appear in the shooting display and control
panel when aperture lock is in effect.
[Focus-point lock]
Select [ON] to lock focus-point selection on the
currently-selected focus point.
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Focus point lock does not apply when [Auto-area
AF] is selected for AF-area mode.
•
When [3D-tracking] is selected, the focus point
will track subject motion while the shutter-release
button is pressed halfway.