Canon PowerShot A85 User Manual download pdf (Page 77)

75

Shooting – Advanced Functions

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.

z 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 and Modes.

z The following settings can be adjusted in

mode, but not in mode.

z For the correlation between aperture value

and shutter speed, see page 76.

• Exposure Compensation • White Balance

• ISO Speed • Flash (Flash on)

• Photo Effects • Continuous Shooting

• Light Metering Mode • Manual Focus

• AF Frame

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.

z If the aperture value shows in red, the

image is underexposed (insufficient light)

or overexposed (too much light). Adjust

the shutter speed using or until the

aperture value display turns to white.

z 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.

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