Nikon D4 - Manual (Page 46)

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Adjusting Autofocus to the Lens: AF Fine-Tune
If you fi nd that certain lenses do not produce the desired
results with autofocus, you can adjust focus for each lens
using the AF fi ne-tune > Saved value or Default options
in the setup menu (note that AF tuning may interfere with
normal focus; use only when required).
Option Option Description Description
AF fi ne tune
(On/Off )
On: Turn AF tuning on for all saved lenses.
Off : Turn AF tuning off . •
•
Saved value Tune AF for the current lens (CPU lenses only).
Default
Choose the AF tuning value used if no previously saved
value exists for the current lens (CPU lenses only).
List saved
values
List previously saved AF tuning values. If you are using
more than one lens of the same type, you can add an
identifi er to the lens name (for example, the last two
digits of the lens serial number).
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Taking Photographs