D8: Viewfinder Grid Display - Nikon D5 User Manual

Option
File numbering is reset to 0001 when a new folder is
created, the memory card is formatted, or a new memory
card is inserted in the camera. Note that a new folder is
Off
created automatically if a photograph is taken when the
current folder contains 999 photographs.
As for On, except that the next photograph taken is
assigned a file number by adding one to the largest file
Reset
number in the current folder. If the folder is empty, file
numbering is reset to 0001.
D
File Number Sequence
If the current folder is numbered 999 and contains either 999
photographs or a photograph numbered 9999, the shutter-release
button will be disabled and no further photographs can be taken.
Choose Reset for Custom Setting d7 (File number sequence) and then
either format the current memory card or insert a new memory card.

d8: Viewfinder Grid Display

Choose On to display on-demand grid lines in the viewfinder for
reference when composing photographs (0 10).
Description
G button ➜ A Custom Settings menu
U
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