Canon POWERSHOT A480 User Manual page 80

You can set the shutter speed to a range between 1 and 15 seconds to
shoot long exposures. However, you should attach the camera to a tripod to
prevent the camera from moving and blurring the image.
select
After pressing the
MODE
button, press the
4_ buttons to select SCN.
Press the Av buttons to select *S, then
press the @ button.
Select the shutter speed.
,,: After pressing the @ button, press the
Av buttons to select 1".
Press the 4 _' buttons to select a shutter
speed, then press the @ button.
Confirm the exposure.
When you press the shutter button
halfway, the exposure for the selected
shutter speed will appear.
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