Canon PowerShot A 1000 IS User Manual page 119

Changing Functions
Power Saving during Shooting
You can change the time at which the screen shuts down automatically
during shooting (p. 118). This also works when [Auto Power Down] is set to
[Off].
In order to save battery power, it is recommended to choose less than
[1 min.].
Choose [Power Saving], then press the
@
button.
Press the ..... buttons to select [Display Off],
then use the
~.,
buttons to select a time.
Changing the File Number Assignment
Images you shoot are automatically assigned file numbers, in the order they
were taken, from 0001 - 9999, and saved to folders of up to 2000 images.
You can change the file number assignment.
Select [File Numbering], then press the
~.,
buttons to select a setting.
[Continuous]: Even if you shoot using a new
memory card, the file numbers are assigned
consecutively until an image with the number
9999 is taken/saved.
[Auto Reset]: If you replace the memory card
with a new one, file numbers are assigned
starting with 0001 consecutively.
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