Canon POWERSHOT SX150 IS User Manual page 23

Protecting images
.... Protect images.
Press the v button to choose [Protect],
then press the @ button.
You can also choose the first or last image by turning the :_ii_:; dial when the upper
screen in Steps 2 and 3 is displayed.
_ Choosing All images
Choose [All images].
: Follow Step 2 on p. 1 I9 to choose JAil
Images], then press the @ button.
Protect images.
............ Press the Av buttons or turn the _i:_ dial
to choose [Protect], then press the
button.
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