Canon REBEL SL1 EOS 100D Instruction Manual page 56

Erasing Images
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Select [Select and erase images].
Select [Select and erase images],
then press <SET>.
An image will be displayed.
To display the three-image display,
press the <5_ _,> button. To return to
the single-image display, press the
< 0, > button.
Select the images to be erased.
Press the <<> <1_> keys to select
the image to be erased, then press
<SET>.
A checkmark <,V> will be displayed
on the upper left of the screen.
To select other images to be erased,
repeat step 3.
.... Erase the image.
Press the <'@> button.
Select [OK], then press <SET>.
The selected images will be erased.
You can erase all the images in a folder or on a card at one time. When
[r-cq1: Erase images] is set to [All images in folder] or [All images on
card], all the images in the folder or on the card will be erased.
To also erase protected images, format the card (p.48).
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