Canon PowerShot G9 - Manual (Page 218)

Troubleshooting 216
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 aperture-
priority
mode.
z 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. z Shoot with [Red-Eye] set to [On]
(p. 113). 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.
z You can correct red eyes in recorded
images using the [Red-Eye
Correction] (p. 180).
Continuous shooting slows down.
The memory card’s
performance has dropped. z To enhance the continuous shooting
performance, you are recommended
to low level format the memory card in
the camera after you save all its
images to your computer (p. 69).
Recording images to memory card takes a long
time.
Memory card was
formatted in another
device. z Use a memory card formatted in your
camera (p. 69).