Nikon D2Xs manual ISO Sensitivity, Reacting Faster to Light, ISO Menu

ISO Sensitivity

Reacting Faster to Light

Taking Photographs—ISO Sensitivity

“ISO sensitivity” is the digital equivalent of film speed. The higher the ISO sensitivity, the less light needed to make an exposure, allowing higher shutter speeds or smaller apertures.

ISO sensitivity can be set between values roughly equivalent to ISO 100 and ISO 800 in steps equivalent to 1/3 EV. Settings over ISO 800 are available where high sensitivity is a priority:

EV steps over ISO 800	ISO equivalent Control panel display Viewfinder display
Approximately 1/3 *	1000
Approximately ½†	1100
Approximately 2/3 *	1250
Approximately 1	1600
Approximately 2	3200

*Available only when 1/3 step is selected for Custom Setting b2 (ISO step value).

† Available only when 1/2 step is selected for Custom Setting b2 (ISO step value).

ISO sensitivity can be adjusted using the ISO sensitivity option in the shoot- ing menu or by pressing the ISO button and rotating the main command dial.

The ISO Menu

1 Highlight ISO sensitivity in the shooting menu ( 168) and press the multi selector to the right.

2 Highlight the desired option and press the multi selector to the right. The shooting menu will be displayed.

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