Canon EOS 50D - Manual (Page 81)

81
3 File Numbering Methods
The file numbering restarts from 0001 each time the card is
replaced or a new folder is created.
Whenever the 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 cards or folders. If the replacement 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 card each time.
To reset the file numbering to 0001 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 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.
Auto Reset
Manual Reset
XXX-0051
Card-1
100-0001
Card-2
File numbering after
replacing the card
File numbering is reset
100
XXX-0051
101
XXX-0001
Card-1
File numbering after
creating a folder
If folder No. 999 is created, [Folder number full] will appear on the LCD
monitor. If that folder contains images reaching file number 9999, shooting will
not be possible even if the card still has storage capacity. The LCD monitor will
display a message to replace the card. Replace with a new card.
For both JPEG and RAW images, the file name will start with “IMG_”. The
extension will be “.JPG” for JPEG images and “.CR2” for RAW images.
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