Canon 220 EX - Manual (Page 15)

15
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.
• 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.
Shutter Speed and Aperture Settings According to 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 sec. 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.
220EX(E) 15-10-2002 07:11 Pagina 15