Canon PowerShot SX1IS User Manual page 273

Digital camera
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2
Turn the external flash on and turn the camera
on.
(red) appears on the LCD monitor (or the viewfinder).
3
Turn the mode dial to the desired mode.
Speedlite 220EX*
• The maximum flash synchro shutter speed is 1/250 second.
• The flash will automatically adjust its output when [Flash
Mode] is set to [Auto].
• When [Flash Mode] is set to [Auto] the flash exposure
compensation can be adjusted. When [Flash Mode] is set to
[Manual], the flash output can be adjusted
• In
mode or when [Flash Mode] is set to [Manual], the
output of an externally mounted flash can be adjusted in the
flash output adjustment screen
aperture values and ISO speeds for the distance to the
subject, refer to the guide number listed in the flash's user
guide (adjustment can be made on the camera only).
You can also adjust the flash output even when the camera is
set to the E-TTL automatic flash exposure compensation
mode by changing the flash exposure compensation setting.
* You can also use the 380EX, 420EX, 430EX, 550EX and 580EX.
(p.
112).
(p.
112). For the optimal
271

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