Nikon D40 - Manual (Page 76)

64 Menu Guide/Using Camera Menus
To modify menu settings:
Press the shutter-release button halfway to exit the menus and return to shooting mode.
The monitor will turn off.
Display menus. Highlight icon for current menu.
Select menu.
Position cursor in selected menu. Highlight menu item.
Display options. Highlight option.
Menu items that are displayed in gray are not cur-
rently available.
Make selection.
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