Choose whether changes to ISO sensitivity are made in increments of 1/3 or 1 EV. 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: Focus

b: Metering/Exposure

c: Timers/AE Lock

d: Shooting/Display

e: Bracketing/Flash

f: Controls

g: Video