Canon EOS 70D, Basic Instruction Manual

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188
In Creative Zone modes, just press the
<
D
> button to raise the built-in flash for
flash photography. To retract the built-in
flash, push it back down with your fingers.
In Basic Zone modes (except <
7
> <
3
>
<
5
> <
G
> modes), the built-in flash will
be raised and fire automatically in low-light and backlit conditions.
In the <
A
> <
C
> <
2
> <
4
> <
F
> modes, you have the option to fire
the flash or not.
The table below shows the shutter speed and aperture settings that will
be used with flash.
D
Using the Built-in Flash
Shooting Mode Shutter Speed Aperture
A C 2 4 6 F
Automa ically set Automatically set
d
Automatically set (1/250 sec. - 1/60 sec.) Automatically set
s
Manually set (1/250 sec. - 30 sec.) Automatically set
f
Automa ically set (1/250 sec. - 30 sec.) Manually set
a
Manually set (1/250 sec. - 30 sec.) Manually set
F
The exposure will continue while you
hold down the shutter button.
Manually set
Flash Photography in the <
f
> Mode
To obtain a correct flash exposure, the flash output will be set automatically
(autoflash exposure) to match the manually-set aperture. The shutter speed
will be set automatically between 1/250 sec. - 30 sec. to suit the scene’s
brightness.
In low light, the main subject is exposed with the automatic flash, and the
background is exposed with a slow shutter speed set automatically. Both the
subject and background look properly exposed (automatic slow-speed flash
sync). If you are handholding the camera, keep it steady to prevent camera
shake. Using a tripod is recommended.
To prevent a slow shutter speed, under [
z
2: Flash control ], set [ Flash
sync. speed in Av mode ] to [ 1/250-1/60 sec. auto ] or [ 1/250 sec. (fixed) ]
(p.196).