Auto Reset; Manual Reset - Canon MARK III EOS-1 DS Instruction Manual

3 File Numbering Methods

Auto Reset

The file numbering restarts from 0001 each time the memory card
is replaced or a new folder is created.
Whenever the memory card is replaced or a new folder created, the file
numbering starts from 0001. This is convenient if you want to organize
images according to memory cards or folders.
If the replacement memory card or existing folder already contains
images recorded previously, the file numbering of the new images might
continue from the file numbering of the existing images in the card or
folder. If you want to save images with the file numbering starting from
0001, use a newly formatted memory card each time.
File numbering after replacing
the memory card
Card A
XXXX0051

Manual Reset

The file numbering starts from 0001 in the new folder.
When you reset the file numbering manually, a new folder is created
automatically and the file numbering of images saved to that folder
starts from 0001. This is convenient when you want to use different
folders for the images taken yesterday and the ones taken today, for
example. After the manual reset, the file numbering returns to
continuous or auto reset.
If the folder number is 999 and the file number reaches 9999, you will not be
able to take any more pictures even if the memory card is not full. A
message asking you to replace the memory card will appear on the LCD
monitor. Either replace the memory card or switch to the other memory card
in the camera.
80
Card B
XXXX0001
File numbering after
changing the folder
Card A
100 101
XXXX0051 XXXX0001