Nikon D800 - Manual (Page 346)

En_03
322
U
Choose the role played by the depth-of-field preview button
during movie live view.
g2: Assign Preview Button
G button ➜ A Custom Settings menu
Option Description
q
Power aperture
(close)
Aperture narrows while the button is pressed. Use in
combination with Custom Setting g1 (Assign Fn
button) > Power aperture (open) for button-
controlled aperture adjustment.
r Index marking
Press the button during movie recording to add an
index at the current position (
0 63). Indices can be
used when viewing and editing movies.
s
View photo
shooting info
Press the button to display information on shutter
speed, aperture, and other photo settings in place of
movie recording information. Press again to return to
the movie recording display.
None Pressing the button has no effect.
A
Power Aperture
Power aperture is available only in exposure modes g and h and can not
be used during recording or while photo shooting info is displayed (a
6
icon indicates that power aperture can not be used). The display may
flicker while aperture is adjusted.