Program Ae; Tv Setting The Shutter Speed - Canon Powershot A75 User Manual

Program AE

Use the program AE mode to have the
camera automatically set the shutter speed
and aperture value to match the brightness of
the scene.
The shutter speed and aperture value will
show in red on the LCD monitor when the
correct exposure cannot be obtained. Use the
following methods to obtain the correct
exposure and make them appear in white.
• Use the flash
• Change the ISO speed
• Change the light metering mode
Differences between the
The following settings can be adjusted in
mode, but not in
• Exposure Compensation
•
ISO Speed
•
Photo Effects
•
Light Metering Mode
•
Autofocus
For the correlation between aperture value
and shutter speed, see page 76.
and Modes.
mode.
• White Balance
•
Flash (Flash on)
•
Continuous Shooting
•
Manual Focus
Setting the Shutter Speed
When you set the shutter speed in the shutter
speed-priority AE mode, the camera
automatically selects an aperture value to
match the brightness.
Faster shutter speeds allow you to catch an
instantaneous image of a moving subject
while slower speeds create a flowing effect
and allow you to shoot without a flash in dark
areas.
If the aperture value shows in red, the
image is underexposed (insufficient light)
or overexposed (too much light). Adjust
the shutter speed using
aperture value display turns to white.
The nature of CCD image sensors is such
that noise in the recorded image
increases at slow shutter speeds. This
camera, however, applies special
processing to images shot at shutter
speeds slower than 1.3 seconds to
eliminate the noise, thereby producing
high-quality images. Nevertheless, a
certain amount of processing time may be
required before the next image can be
shot.
Shooting – Advanced Functions
or until the
75