Cannot Make AF-Assist Beam of 600EX-RT to work on 1Dx

Started Jul 31, 2012 | Discussions thread
thenibster
Forum MemberPosts: 99
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Re: Cannot Make AF-Assist Beam of 600EX-RT to work on 1Dx
In reply to Thomas KP Lee, Jul 31, 2012

Hi Thomas,

This set up seems to be working fine for me. Just confirm you're shooting in One Shot AF, not AI Servo. The AF Assist beam has never been compatible with Servo AF.

Another position to check, is the Custom Functions in the Flash. You can access this either on the Flash, or through the camera itself.

Select External Speedlite Control (Shoot Menu 3) > Flash C.Fn setting > Option 8 needs to be set to 0. (8:0). This enables the AF-assist beam firing.

Hope that helps!

Nibby

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