Nikon D780 DSLR Camera (Body Only) - Manual (Page 658)

612 Menu Guide > A Custom Settings
D File Number Sequence
• If a picture is taken when the current folder contains a picture
numbered 9999, a new folder will be created and file numbering will
restart from 0001.
• When the current folder number reaches 999, the camera will no longer
be able to create new folders and the shutter release will be disabled if:
- The current folder contains 5000 pictures (in addition, movie
recording will be disabled if the camera calculates that the number of
files needed to record a movie of the maximum length would result in
the folder containing over 5000 files)
- The current folder contains a picture numbered 9999 (in addition,
movie recording will be disabled if the camera calculates that the
number of files needed to record a movie of the maximum length
would result in a file numbered over 9999)
To resume shooting, choose [ Reset ] for Custom Setting d7 [ File
number sequence ] and then either format the current memory card or
insert a new memory card.
D Folder Numbering
• If a picture is taken when the current folder contains 5000 pictures or a
picture numbered 9999, a new folder will be created and selected as the
current folder.
• The new folder is assigned a number one higher than current folder
number. If a folder with that number already exists, the new folder will
be assigned the lowest available folder number.