Nikon D6 Reference Manual page 917

Live View
Role
[Select center
K
focus point]
X
[Zoom on/off]
[None]
Pressing the center of the multi selector
selects the center focus point.
Press the center of the multi selector to zoom
the display in on the area around the current
focus point (the zoom ratio is selected in
advance). Press again to return to the
previous display.
•
To choose the zoom ratio, highlight [Zoom
on/off] and press 2 .
Pressing the center of the multi selector has
no effect.
A Custom Settings: Fine-Tuning Camera Settings
Description
865