Nikon D6 Reference Manual page 949

Creating and Saving Fine-Tuning Values
1
Attach the lens to the camera.
2
Select [AF fine-tuning options] in the setup menu,
then highlight [Fine-tune and save lens] and press
2 .
An AF fine-tuning dialog will be displayed. The options
displayed vary with whether the attached lens is a zoom lens
or has a fixed focal-length.
Zoom lens Fixed focal-length lens
B The Setup Menu: Camera Setup 897