Using E-Ttl Ii And E-Ttl Autoflash In The Shooting Modes - Canon SPEEDLITE 580EX II Instruction Manual

Using E-TTL II and E-TTL Autoflash in the Shooting Modes ..
Just set the camera's shooting mode to
<
Av>
(aperture-priority AE),
<Tv>
(shutter-priority AE), or
<M>
(manual) and you can use E-TTL
III
E-TTL autoflash.
Select this mode when you want to set the shutter speed manually.
The camera will then automatically set the aperture matching the shutter
Tv
speed to obtain a standard exposure.
~ If the aperture display blinks, it means that the background exposure will
be underexposed or overexposed. Adjust the shutter speed until the
....
aperture display stops blinking .
Select this mode when you want to set the aperture manually.
The camera will then automatically set the shutter speed matching the
aperture to obtain a standard exposure.
If the background is dark like a night scene, a slow sync speed will be used
to obtain a standard exposure of both the main subject and background.
Av
Standard exposure of the main subject is obtained with the flash, while a
standard exposure of the background is obtained with a slow shutter speed.
• Since a slow shutter speed will be used for low-light scenes, using a
tripod is recommended.
• If the shutter speed display blinks, it means that the background
exposure will be underexposed or overexposed. Adjust the aperture until
the shutter speed display stops blinking.
Select this mode if you want to set both the shutter speed and aperture
manually.
M
Standard exposure of the main subject is obtained with the flash. The
exposure of the background is obtained with the shutter speed and aperture
combination you set.
• If you use the
<
DEP
>
or
<
A·DEP
>
shooting mode, the result will be the same as
using the
<
P
>
(Program AE) mode.
Flash Sync Speeds and Apertures Used
Shutter Speed Setting Aperture Setting
P
Set automatically (1/60 sec. - 1/X sec.) Automatic
Tv
Set manually (30 sec. - 1/X sec.)
Automatic
Av Set automatically (30 sec. - 1/X sec.) Manual
M
Set manually (bulb, 30 sec. - 1
IX
sec.)
Manual
• 1/X sec. is the camera's maximum flash sync speed.
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