Canon PowerShot G7 PowerShot G7 Camera User Guide Advanced - Page 147
Turn the shooting mode dial to the desired, mode., Speedlite 220EX, 430EX or 580EX, Other Canon
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3 Turn the shooting mode dial to the desired mode. Speedlite 220EX, 430EX or 580EX z The maximum flash synchro shutter speed is 1/250 second. z The flash will automatically adjust its output when [Flash Adjust] is set to [Auto]. z In mode or when [Flash Adjust] is set to [Manual], the flash will fire with manual adjustments. Refer to the guide number noted in the instructions manual for the flash you are using for aperture value and ISO speed, and set the appropriate value for the distance from the subject. z When [Flash Adjust] is set to [Manual], the flash output can be adjusted. When [Flash Adjust] is set to [Auto] the flash exposure compensation can be adjusted (p. 73). z In mode or when [Flash Adjust] is set to [Manual], the output of an externally mounted flash can be adjusted in the flash output adjustment screen (p. 73). When a Speedlite 430EX or 580EX is mounted on the camera, you can adjust the flash output from either the flash or the camera. (The flash setting overrides the camera setting when both are set.) To set it from the flash, you are recommended to use the flash's manual mode. When using Speed Light 220 EX, 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. To shoot with the flash, you are recommended to set the white balance to the (Flash) setting. Other Canon Flashes z Since other flashes fire at full strength, set the shutter speed and aperture accordingly. You are recommended to set the white balance to (Flash) to shoot. 4 Press the shutter button halfway. z The flash is charged when its pilot lamp lights up. 145 Appendix