Nikon D700 User Manual page 25

ISO sensitivity can be set to values between ISO 200 and ISO 6400
in steps equivalent to 1/3 EV.Settings of from about 0.3-1 EV below
ISO 200 and 0.3-2 EV above ISO 6400 are also available for special
situations.
ISO sensitivity can be adjusted by
pressing the ISObutton and
rotating the main command dial
until the desired setting is
displayed in the control panel or
viewfinder.
ISO button Main command
dial
Control panel
Viewfinder
ISO sensitivity: 6400
[] The ISO Sensitivity Menu
ISOsensitivity can also be adjusted using the ISO sensitivity option in the
shooting menu (pg. 268).
106