271Vignette control (defaults to Normal)High Reduce the drop in brightness at theedges of photographs when using typeG, E, and D lenses (PC lenses excluded).The effect is most noticeable atmaximum aperture.NormalLowOffAuto distortion control (defaults to Off)On Reduce barrel distortion when shootingwith wide-angle lenses and to reducepin-cushion distortion when shootingwith long lenses.OffLong exposure NR (defaults to Off)On Reduce “noise” (bright spots or fog) inphotos taken at slow shutter speeds.OffHigh ISO NR (defaults to Normal)High Reduce “noise” (randomly-spacedbright pixels) in photos taken at highISO sensitivities.NormalLowOffISO sensitivity settingsISO sensitivity Adjust ISO sensitivity settings forphotographs (0 99, 102).Hi ISO command dial accessAuto ISO sensitivity control
