Canon EOS M2 Instruction Manual page 215


Auto reset
The file numbering restarts from 0001 each time the card is replaced
or a new folder is created.
When you replace the card or create a folder, the file numbering restarts
from 0001 for the new images saved. This is convenient if you want to
organize images by cards or folders.
However, if the replacement card or existing folder already contains
images recorded previously, the file numbering of the new images may
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 card each time.
File numbering after
replacing the card
Card 1
0051
File numbering is reset

Manual reset
To reset the file numbering to 0001 manually or to start from file
number 0001 in a 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 if 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. (There will be no
Manual reset confirmation screen.)
If the file number in folder 999 reaches 9999, shooting will not be possible even if
the card still has storage capacity. The LCD monitor will display a message
telling you to replace the card. Replace it with a new card.
For both JPEG and RAW images, the file name will start with "IMG_". Movie file
names will start with "MVI_". The extension will be ".JPG" for JPEG images,
".CR2" for RAW images, and ". MOV" for movies.
Card 2
0001
File numbering after
creating a folder
Card 1
100 101
0051
Handy Features
0001
215