d11 Exposure Delay Mode
Explanation: Exposure delay mode means that when the internal mirror has been raised the actual exposure will be done with a delay of about one second.
This prevents shaking of the camera body because of the mirror movement during the exposure. It is the same principle as the release mode Mup.
Tips: The usage of this feature is rare. If you take pictures with the camera on a tripod and the shooting situation is sensitive to camera shaking (i.e. macro or long tele lenses) and the exposure time is in a certain range of about 1/60 to 1 second it can bring you better sharpness.
But you will do nothing wrong if you just switch it on whenever the camera is on a tripod, that‘s what I do.