Nikon D500 用户指南

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Choose On to display on-demand grid lines in the viewfinder for 
reference when composing photographs.

If Off is selected, the control panel and button backlights 
(illuminators) will only light while the power switch is rotated 
toward 

D. If On is selected, the backlights will remain on while 

the standby timer is active. Regardless of the option selected, 
the backlights turn off when the shutter-release button is 
pressed; if On is selected, they will come back on when you lift 
your finger from the shutter-release button. Select Off for 
increased battery life.

D

If the current folder is numbered 999 and contains either 999 pictures 
or a photograph numbered 9999, the shutter-release button will be 
disabled and no further pictures can be taken (in addition, movie 
recording may be disabled if the current folder is numbered 999 and 
the next file would be the 992nd or numbered 9992 or higher). Choose 
Reset for Custom Setting d7 (File number sequence) and then either 
format the current memory card or insert a new memory card.

G button

➜ A Custom Settings menu

G button

➜ A Custom Settings menu