3673 Custom Function SettingsNC.Fn I -6 Safety shift0: Disable1: Shutter speed/ApertureThis takes effect in the shutter-priority AE (s) and aperture-priority AE(f) modes. If the subject brightness changes and the standard exposurecannot be obtained within the autoexposure range, the camera willautomatically change the manually-selected setting to obtain a standardexposure.2: ISO speedThis works in the Program AE (d), shutter-priority AE (s), and aperture-priority AE (f) modes. If the subject brightness changes and the standardexposure cannot be obtained within the autoexposure range, the camerawill automatically change the manually set ISO speed to obtain a standardexposure.Under [z3: ISO speed settings], even if [ISO speed range] or [Min.shutter spd.] is changed from the default setting, safety shift willoverride it if a standard exposure cannot be obtained.The minimum and maximum ISO speeds of the safety shift using the ISOspeed will be determined by the [Auto ISO range] setting (p.124).However, if the manually set ISO speed exceeds the [Auto ISO range],the safety shift will take effect up to the manually set ISO speed.If [Shutter speed/Aperture] or [ISO speed] is set, safety shift will takeeffect if necessary even when flash is used.