“Sensitivity” (the camera’s sensitivity to light) can be adjusted by lifting and rotating the ISO dial. Higher values can be used to reduce blur when lighting is poor (note, however, that mottling may appear in pictures taken at high sensitivities).
Sensitivity is not reset when the camera is turned off.
Use [BUTTON/DIAL SETTING] > [ISO DIAL SETTING (H)] to choose the sensitivity assigned to the [H] position.
Use [BUTTON/DIAL SETTING] > [ISO DIAL SETTING (L)] to choose the sensitivity assigned to the [L] position.