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CMS-XML AF-assist beam firing
AF-assist beam firing Enables or disables the EOS-dedicated Speedlite’s AF- assist beam ON: Enable
CMS-XML 380EX Speedlite : How to use the AF-Assist Beam and what is its coverage
If where you focus lack sufficient light or contrast, the Speedlite's AF- Assist beam is emitted automatically to help the camera autofocus. The AF-Assist beam is effective from 0.7 to 10 meters (2.3 to 33 feet) AF-Assist beam activation
CMS-XML EOS R50: AF-Assist Beam Firing
AF-Assist Beam Firing Speedlite AF- assist beam firing is disabled when the Speedlite's [ : AF-assist beam firing ] Custom Function is set to [Disable
CMS-XML EOS REBEL T8i: AF-Assist Beam Firing
AF-Assist Beam Firing If an external Speedlite's [AF- assist beam firing ] Custom Function is set to [1:Disabled ], the AF-assist beam will not be fired.
CMS-XML 220EX Speedlite : How to use the AF-Assist Beam and what is its coverage
The Speedlite 220EX AF- Assist beam is emitted automatically to enable precise autofocus under dim light and low contrast conditions. The AF-Assist beam is effective from 1 to 5 meters (3.3 to 16.4 feet)
CMS-XML How to set and use the Custom Function Settings "C.Fn" on the 430EX II Speedlite
Custom Function Settings C.Fn-02-113: Convenient when you want to use the depth-of-field preview button to check the depth of field. C.Fn-08: If the Speedlite or camera's AF- assist beam is disabled, the AF- assist beam will not be emitted.
CMS-XML Shooting with Speedlites and the EOS R50
EL/EX Series Speedlites for EOS Cameras The Speedlite will fire an intermittent AF- assist beam as needed, if autofocusing is difficult under low light.
CMS-XML EOS-dedicated, EX-series Speedlites
] is not set to [Disable ], the image may still look bright even if a darker flash exposure compensation amount was set. When it is difficult to achieve focus with autofocus, the EOS-dedicated, external Speedlite may automatically emit the AF- assist beam.
CMS-XML 580EX II Speedlite : How to set and use the Custom Function Settings "C.Fn"
With Type-A cameras, if C.Fn-05-1 is set, wireless autoflash shooting will not be possible If "AF- assist beam OFF" is set with the Speedlite or camera, the AF- assist beam will not be emitted. With Type-B cameras, even if C.Fn-05-0 is set, E-TTL II/E-TTL autoflash will not work
CMS-XML EOS R6: Shooting with Speedlites
EL/EX Series Speedlites for EOS Cameras The Speedlite will automatically fire an AF- assist beam as needed, if autofocusing is difficult under low light. You can also set flash exposure compensation on the Quick Control screen () or in the [Flash function settings ] setting of [
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