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Flash with Other Modes
The E-TTL autoflash control
system can be used with Type A
cameras set to the
P
(Program
AE),
Av
(Aperture-priority AE),
Tv
(Shutter speed-priority AE),
or
M
(Manual) mode.
■ When you press the shutter button
halfway, the shutter speed and
aperture settings are displayed in
the viewfinder as in any AE mode
Mode
Shutter Speed
Flash Aperture
P
Automatically set(1/60sec to 1/X sec.)*
Automatically set
Av
Automatically set(30sec to 1/X sec.)
Manually set
Tv
Manually set(30sec to 1/X sec.)
Automatically set
M
Manually set(buLb to 1/X sec.)
Manually set
• Manually set refers to the setting by the user Automatically set refers to the set¬
ting computed by the Speedlite 220EX and camera.
• 1/X sec. refers to the camera maximum sync speed (see page 40).
* 1/90 qpn only for the EOS REBEL G: and EOS 500N cameras.
■ The Speedlite 220EX fires a test preflash immediately before the shutter is
released After obtaining an initial flash exposure reading with the preflash, the
Speedlite 220EX fires the main flash to provide optimum flash exposure
■ The exposure for the background is determined with the shutter speed and
aperture settings.
■ The E-TTL indicator on the rear of the Speedlite 220EX lights automatically
when the power is turned on and the shutter button is pressed halfway.
• The shutter speed and aperture are set automatically when the camera
is set to the
P
mode as in fully-automatic flash operations.
• If the flash is used in the
DEP
(Depth-of-field AE) mode or the
Programmed Image Control modes, it will be similar to using flash in
the P mode.
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