81Shooting Functions > ISO sensitivityCustomizing ISO settingsSet to adjust ISO Step, Auto ISO Range, or ISO Expansion.To customize ISOsettings,In Shooting mode, press [m] ĺ b ĺ ISO Customizingĺ an option.Option DescriptionISO Step You can set the size of ISO sensitivity adjustments toeither 1/3 step or 1 step.Auto ISO Range You can set the maximum ISO value the camera willuse to set each EV step when you set the ISO to Auto.ISO Expansion You can select ISO 51200.You can select up to ISO 25600 when using Continuous Normal or up toISO 6400 when using Continuous High.