Canon PowerShot A630 PowerShot A640/A630 Camera User Guide Camera User Guide A - Page 105

Image contains noise., White dots appear on the image., Eyes appear red. - troubleshooting flash

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Image contains noise. ISO speed is too high. z Higher ISO speeds or may increase image noise. For higher image quality, use as low an ISO speed as possible (p. 69). z In , , , , and modes in the mode, the ISO speed increases and noise can appear. White dots appear on the image. Light from the flash has z This is a phenomenon that occurs reflected off dust particles with digital cameras and does not or insects in the air. This is constitute a malfunction. particularly noticeable when shooting using the wide angle or when you increase the aperture value in the mode. Eyes appear red. Light is reflected back from z Shoot with the red-eye reduction the eyes when the flash is function set to On (Basic Guide used in dark areas. p. 15). For this mode to be effective, the subject must be looking right at the red-eye reduction lamp. Try asking them to look directly at the lamp. z Even better results can be obtained by increasing the lighting in indoor settings or approaching closer to the subject. The shutter will not activate for approximately 1 second after the red-eye reduction lamp fires in order to improve the effect. Troubleshooting 103

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103
Troubleshooting
Image contains noise.
ISO speed is too high.
Higher ISO speeds or
may
increase image noise. For higher
image quality, use as low an ISO
speed as possible (p. 69).
In
,
,
,
,
and
modes in the
mode, the ISO
speed increases and noise can
appear.
White dots appear on the image.
Light from the flash has
reflected off dust particles
or insects in the air. This is
particularly noticeable
when shooting using the
wide angle or when you
increase the aperture
value in the
mode.
This is a phenomenon that occurs
with digital cameras and does not
constitute a malfunction.
Eyes appear red.
Light is reflected back from
the eyes when the flash is
used in dark areas.
Shoot with the red-eye reduction
function set to On (
Basic Guide
p. 15). For this mode to be effective,
the subject must be looking right at
the red-eye reduction lamp. Try
asking them to look directly at the
lamp.
Even better results can be obtained
by increasing the lighting in indoor
settings or approaching closer to the
subject. The shutter will not activate
for approximately 1 second after the
red-eye reduction lamp fires in order
to improve the effect.