Af-Assist Beam - Canon SPEEDLITE 320EX Manual De Instrucciones

AF-assist Beam

When autofocus cannot achieve focus on the subject in low-light
conditions, the AF-assist beam activates automatically.
AF-assist Beam Using Continuous Flashes
When autofocus cannot achieve focus on the subject in low-light
conditions while taking pictures using the viewfinder, pressing the
shutter button halfway fires the flash continuously to assist autofocus.
The flash also fires continuously under the same conditions when AF
mode is set to [Quick mode] during Live View shooting or movie
shooting. The effective range is approximately 4 m / 13.1 ft.
This function only works when used with an EOS digital camera with an
external Speedlite control function. Depending on the camera model,
the firmware of the camera may need to be updated.
AF-assist Beam Using the LED Light
The LED light can be used as the AF-assist beam when the AF mode is
set to [Live mode] or [uLive mode] during Live View shooting. The
effective range is approximately 4 m / 13.1 ft. (With f/1.8 lens at ISO
3200)
Manual light button
Manual light
Set the LED light switch to <M> and press the <LED LIGHT> button
until the LED light turns on.
The LED light will turn off after about 60 minutes of idle use.
To turn off the LED light, press the <LED LIGHT> button until the LED
light turns off.
The Speedlite does not fire when the LED light is turned on.
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Manual light
LED light switch
Auto light