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Speedlite 580EX II (5)
 
 
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CMS-XML Troubleshooting: The Speedlite does not fire.
The Speedlite is not attached securely to the camera Attach the Speedlite's mounting foot securely to the camera The electrical contact of the Speedlite and the camera are dirty Clean the contact with a clean dry cloth If the Pilot light is red and is then pushed in and the Speedlite does not fire possibly The flash needs to be serviced
CMS-XML The camera show E in Creative Zone when using the 580EX II
If "AF- assist beam 0FF" is set with the Speedlite or camera, the AF assist beam will not be emitted . With Type-B cameras, even if .Fn-05-0 is sat, E-TTL II / E-TTL autoflash will not work,
CMS-XML Reset C.Fn-5 is set to 0 (E-TTL).
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 QuickGuide to Canon Speedlite 580EX II Modes and Functions
Note that given a fixed ISO setting, the longer your shutter speed, therefore the more effect that ambient light and any resulting preflash motion blur will have on the image. E-TTL Automatic also has three wireless flash options: Wireless [Off]