265A Custom Settings: Fine-Tuning Camera SettingsChoose the role played by the Fn button.f: Controlsf1: Assign Fn ButtonG button ➜ A Custom Settings menuOption Descriptionv Imagequality/sizeKeeping the Fn button pressed, rotate thecommand dial to select image quality and size(0 90).w ISOsensitivityKeeping the Fn button pressed, rotate thecommand dial to select ISO sensitivity (0 99).m WhitebalanceKeeping the Fn button pressed, rotate thecommand dial to select white balance (P, S, A, and Mmodes only; 0 137).! ActiveD-LightingKeeping the Fn button pressed, rotate thecommand dial to select Active D-Lighting (P, S, A,and M modes only; 0 133).$ HDRKeeping the Fn button pressed, rotate thecommand dial to adjust HDR (P, S, A, and M modesonly; 0 135).& +NEF (RAW)If image quality is set to JPEG fine, JPEG normal,or JPEG basic, an NEF (RAW) copy will be recordedwith the next picture taken after the Fn button ispressed. To exit without recording an NEF (RAW)copy, press the Fn button again. This option has noeffect in the following special effects modes: %, S,T, U, ', (, and 3.Fn button