Except when an optional flash unit is used, the mirror remains up during live view photography, reducing noise during shooting. The noise of the shutter is still audible. In this mode, beeps are disabled and the sound of the mirror dropping back into place is minimized. The mirror is quieter than in single-frame mode.nikongrossary
The Quiet Shutter Release Mode softens the camera s operation when shooting in sensitive environments such as ceremonies or when photographing wildlife.