Canon PowerShot A470 PowerShot A470 Camera User Guide - Page 137

Image contains noise., White dots appear on the image., Eyes appear red. - digital camera

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135 Troubleshooting Image contains noise. ISO speed is too high. z Higher ISO speeds and (High ISO Auto) setting may increase image noise. For higher image quality, use as low an ISO speed as possible (p. 81). z In the , , or 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 or with digital cameras and does not insects in the air. This is constitute a malfunction. particularly noticeable when shooting using the wide angle. Eyes appear red. Light is reflected back from the eyes when the flash is used in dark areas. z Shoot with [Red-Eye Lamp] in the [Flash Settings] set to [On] (p. 70). 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 If you set the [Red Eye Corr.] in the [Flash Settings] to [On], the camera will automatically correct red eyes while shooting and record the image to the memory card (p. 70). z You can correct red eyes in images using the [Red-Eye Correction] function in the menu (p. 105).

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135
Troubleshooting
Image contains noise.
ISO speed is too high.
Higher ISO speeds and
(High ISO
Auto) setting may increase image
noise. For higher image quality, use
as low an ISO speed as possible
(p. 81)
.
In the
,
,
or
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.
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 [Red-Eye Lamp] in the
[Flash Settings] set to [On]
(p. 70)
.
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.
If you set the [Red Eye Corr.] in the
[Flash Settings] to [On], the camera
will automatically correct red eyes
while shooting and record the image
to the memory card
(p. 70)
.
You can correct red eyes in images
using the [Red-Eye Correction]
function in the
menu
(p. 105)
.