File Naming - Nikon Z fc N2016 Reference Manual

Folder and file numbers
D
･ Once the folder number has reached 999, the camera will stop creating
new folders automatically and disable the shutter release if:
- the current folder contains 5000 pictures (in addition, video recording
will be disabled if the camera calculates that the number of files needed
to record a video of the maximum length would result in the folder
containing over 5000 files), or
- the current folder contains a picture numbered 9999 (in addition,
video recording will be disabled if the camera calculates that the
number of files needed to record a video of the maximum length would
result in a file numbered over 9999).
･ If there is space on the memory card, you will nevertheless be able to
continue shooting by:
- creating a folder with a number less than 999 and selecting it as the
storage folder, or
- changing the options selected for [Frame size/frame rate] and [Video
quality] before recording videos.
Startup time
D
Additional time may be required for camera startup if the memory card
contains a very large number of files or folders.

File naming

Pictures are saved using file names consisting of "DSC_" followed by a
four-digit number and a three-letter extension. [File naming] is used to
select three letters to replace the "DSC" portion of the file name. For
information on text entry, see "Text entry" (0239).
C The photo shooting menu: Shooting options
G button U C photo shooting menu
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