Press the Menu button.
The previously used menu displays.
Use the Multi-controller to navigate to the Camera Settings 4 tab.
Use the Multi-controller or the Quick Control dial to highlight Clear All Camera Settings and then press Set.
A dialog box appears, asking you to confirm that you want to clear all settings. Make sure you have thought about this and have any important material backed up elsewhere.
Use the Multi-controller or the Quick Control dial to highlight OK and then press Set.This must be done before you can decide whether there is a problem with the camera or some setting you changed and either didn't realize it or set something wrong on purpose.