Canon EOS-1D X Mark III DSLR Camera (Body Only) - Manual (Page 459)

Erasing All Images in a Folder or on a Card
You can erase all the images in a folder or on a card at once.
When you select [ All images in folder ] or [ All images on card ] in [ : Erase images ],
all the images in the folder or on the card will be erased.
If the search conditions are set with [ : Set image search conditions ] ( ), the
display will change to [ All found images ].
• If you select [ All found images ], all the images filtered by the search conditions will
be erased.
Note
To erase all the images including protected images, format the card ( ).
Erasing images by selecting [ All images on card ] applies to the card selected in
[ : Record func+card/folder sel. ] (in either [ Record/play ]/[ Record/play ]
or [ Play ]/[ Play ]).
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