Custom Setting b1: ISO Auto Control

If On is selected for this option, the camera will automatically adjust ISO sen- sitivity when necessary to help ensure optimal exposure. This option 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

ISO sensitivity remains fixed at value selected by user, regardless of

Off whether optimal exposure can be achieved at current exposure set- (default) tings.

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

On 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.

Menu shown at right is displayed. Press multi Max. selector up or down to highlight desired ISO sensitivity sensitivity and press to right to return to ISO

Menu Guide—Custom Settings

Min.

auto menu.

Menu shown at right is displayed. Press multi selector up or down to highlight desired shutter

shutter

speed

speed and press to right to return to ISO auto menu.

191

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Nikon D2Xs manual Custom Setting b1 ISO Auto Control, 191, Min, Shutter Speed