Canon IXUS 115 HS - Manual (Page 79)

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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.
Choose ≈.
 Follow Steps 1 – 2 on p. 64 to choose ≈.
Choose the shutter speed.
 Press the o button.
 Press the qr buttons to choose the
shutter speed, then press the m button.
Confirm the exposure.
 When you press the shutter button
halfway, the exposure for the chosen
shutter speed will appear on the screen.
Shooting Long Exposures
• The brightness of the image may differ from the brightness of the screen
in Step 3 when the shutter button was pressed halfway.
• When shutter speeds of 1.3 seconds or slower are used, images are
processed to eliminate noise after being taken. A certain amount of
processing time may be needed before you can take the next shot.
• You should set the [IS Mode] to [Off] when shooting with a tripod (p. 175) .
If the flash fires, the image may be overexposed. If this happens, set the
flash to
!
and shoot.