Nikon D3X - Manual (Page 349)

323
U
d5: Control Panel/Viewfinder
Choose the information displayed in the viewfinder and rear
control panel.
Option Description
Rear control
panel
Choose from [ISO sensitivity] ( y; the default setting) and
[Exposures remaining] ( g). If [Exposures remaining] is
selected, ISO sensitivity will only be displayed while the
ISO
button is pressed.
Viewfinder
display
Choose from [Frame count] ( h; the default setting) and
[Exposures remaining] ( g). Note that regardless of the
option selected, memory buffer capacity will be shown
while the shutter-release button is pressed.