Other D5100 Settings
Some settings remain that do not fit into the categories before:
Time zone and date
setup menu
enter or correct time & date
Language
setup menu
choose the language for menus
Clean image sensor
setup menu
defines when the D5100 performs an automatic cleaning of the image sensor
Lock mirror up for cleaning
setup menu
flips up the mirror and allows access to the image sensor for cleaning
Image dust off ref photo
setup menu
creates a reference photo that the Nikon software „Capture“ can use to remove dust spots from images
GPS
setup menu
defines when the optional GPS receiver will be switched off and allows to get the current longitude and latitude
Firmware version
setup menu
shows the current version of the camera’s internal software
Reset shooting menu shooting menu
Reset custom settings custom setting menu
resets the shooting menu / custom setting menu back to default values defined by Nikon