Uniform Modelling Flash
This feature can be used with all EOS cameras.
1. Press the + or – button several times to make the 
icon on the LCD panel appear.
2. Confirm that the flash is charged, and then press the TEST button to fire.
EXPOSURE COMPENSATION
You can use flash exposure compensation in combination with normal exposure compensation (to control the background exposure level) in flash picture. Flash exposure compensation can be set 1/3 stops in
This mode cannot be used with EOS 620, 650, 700, 850 and 1000 cameras.
1. Press the SEL button and select 
2.Press the + or - button to set the desired flash exposure compensation amount.
3.Display will stop blinking and remain displayed, after pressing the SEL button again.
4.Focus on the subject.
5.You can take the picture after confirming that the Ready Light of the flash is illuminated.
To cancel exposure compensation, please start from step 1 and choose + 0 on display.
FB (Flash Exposure Bracketing)
With FB, you can get bracketed flash shots of the subject, while the ambient exposure level remains constant. The bracketed flash shots can be taken in the sequence of correct exposure, under exposure and over exposure, up to
± 3 stops in 1/3EV increments (or 1/2EV increments with some cameras).
1.Press the SEL button; 
mark will blink.
2.Press the + or - button to set the flash exposure bracketing amount.
3.
will be displayed after pressing the SEL button again.
4.Adjust the focusing
5.Check through the viewfinder and confirm the 
flash charged mark,
and take the picture. (it will be displayed as 
at second shot and 
at third shot)
6.If it is necessary, repeat steps 4 to 6.
This function will be cancelled automatically after making the third exposure.
MULTI FLASH MODE
While the shutter is open, the flash will fire repeatedly. By doing so a series of images of the subject will be exposed in one frame. A dark background with a bright subject shows more effectively in this mode. It is possible to set the firing frequency between 1Hz and 199Hz. Up to 90 flashes can be fired continuously. The maximum number of flashes varies, depending on the flash guide number and firing frequency settings. (Please refer to table3 on the last page).
This function cannot be used with EOS 700, 750, 850 cameras.
1.Set the camera’s exposure mode to M mode, and set the F number
2.Press the MODE button until the
3.Press the SEL button until the flash firing frequency starts to blink.
4.Press the + or - button to set the desired flash frequency value.