Nikon D780 DSLR Camera (Body Only) - Manual (Page 152)

106 Camera Controls
Use the Fn button for quick access to
selected settings.
• The assigned setting can be adjusted
by holding the
Fn button and rotating
the command dials. In some cases,
adjustments can be made using both
the main and sub-command dials.
• Use Custom Settings f3 [ Custom controls ] and g2 [ Custom
controls ] in the Custom Settings menu to choose the roles
played by the Fn button during photography and movie
recording, respectively.
• The default assignment for the Fn button is [ Choose image
area ].
D The Fn Button
The Fn button may be disabled in some shooting modes or when certain
conditions apply.
The Fn Button