Nikon D780 Reference Manual page 717

4
Press J .
•
The AF fine-tuning value for the current lens will be added
to the [List saved values] list (CPU lenses only).
•
If auto fine-tuning is successful, AF fine-tuning will be
enabled and the [AF fine-tune on/off] item will change to
[On].
•
If you are using a zoom lens, after completing AF fine-
tuning for either the maximum angle or maximum zoom,
you will need to repeat the process for the remaining item.
Press the X ( T ) button and repeat Steps 2 to 4.
•
New values overwrite existing values.
5
Press J to save changes and exit.
D
If Auto Fine-Tuning Fails
If auto fine-tuning fails, a message will be displayed. Press X ( T ) to
attempt auto fine-tuning again, or press J to exit without performing AF
fine-tuning. Pressing X ( T ) returns you to Step 2.
Menu Guide > B The Setup Menu
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