Select the increments used when making adjustments to ISO sensitivity. If the value currently selected for ISO sensitivity is not available at the chosen setting, ISO sensitivity will be set to the nearest available value.

A Custom Settings: Fine-Tuning Camera Settings

a: Autofocus

b: Metering/Exposure

c: Timers/AE Lock

d: Shootin/Display

e: Bracketing/Flash

f: Controls

g: Movie