Nikon D2Xs - Manual (Page 205)

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Menu Guide—Custom Settings
Custom Setting b1: ISO Auto Control
If On is selected for this option, the cam era will au to mat i cal ly adjust ISO sen-
sitivity when necessary to help ensure optimal exposure. This op tion is not
available at ISO sensitivities over 800.
Highlight b1 ISO auto in the second level of the
CSM menu (
180) and press the multi selector
to the right. Press the multi selector up or down
to highlight an option, then press to the right to
make a selection.
Option Description
Off
(default)
ISO sensitivity remains fi xed at value selected by user, regardless of
whether optimal exposure can be achieved at current ex po sure set-
tings.
On
If optimal exposure can not be achieved at ISO sensitivity selected
by user, ISO sensitivity is adjusted to compensate, to minimum ap-
proximately equivalent to ISO 100 and maximum selected using Max.
Sensitivity option. In exposure modes P and A, ISO sensitivity will be
adjusted if photo would be overexposed at shutter speed of
1 /
8 ,000
s or
underexposed at value selected for Min. Shutter Speed. Otherwise
camera adjusts ISO sensitivity when limits of exposure metering system
are exceeded (mode S) or when optimum exposure can not be achieved
at shutter speed and aperture selected by user (mode M). ISO sensitivity
can not be set to values over 800 while this option is in effect.
Max.
sensitivity
Menu shown at right is displayed. Press multi
selector up or down to highlight desired ISO
sensitivity and press to right to return to ISO
auto menu.
Min.
shutter
speed
Menu shown at right is displayed. Press multi
selector up or down to highlight desired shutter
speed and press to right to return to ISO auto
menu.