Nikon D3400 Kit Owner's Manual

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The following focus modes can be selected during live view:
Note that AF-F is not available in 
' and ( modes.
❚❚ Choosing the Focus Mode
Follow the steps below to choose the focus mode.
1
Display focus mode options.
Press the 
P button, then highlight the 
current focus mode in the information 
display and press 
J.
Option
Description
AF-S
Single-servo 
AF
For stationary subjects. Focus locks when 
shutter-release button is pressed halfway.
AF-F
Full-time-
servo AF
For moving subjects. Camera focuses 
continuously until shutter-release button is 
pressed. Focus locks when shutter-release 
button is pressed halfway.
MF
Manual focus Focus manually (
Viewfinder photography
Live view
P button