Nikon D610 - Manual (Page 347)

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Miscellaneous
Date of recording is not correct : Set camera clock ( 0 27, 253).
Menu item can not be selected : Some options are not available at certain combinations of settings
or when no memory card is inserted. Note that Battery info option is not available when
camera is powered by an optional EP-5B power connector and EH-5b AC adapter (
0 255).