Question about Canon SPEEDLITE 580EX TTL Flash
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Posted on Jan 02, 2017
SOURCE: flash won't fire on p-ttl mode
The AF360 can be in TTL mode until it is mounted on a P-TTL compatible camera and turned on, then it senses the camera and goes to P-TTL. However, sometimes in the past when I got TTL and it should have been PTTL it meant that either the batteries were not connected properly (I know, sounds strange, but check the battery compartment cover to make sure it is seated properly and make sure that the batteries are all in proper position), or that the AF360's contact pins were not all making proper contact with the shoe or extension. Beyond that it could be a faulty flash. You have swapped lenses and cameras with the same result, how about swapping flash? Unfortunately that may be your problem.
Posted on Sep 08, 2005
u can use the H sync button only with the camera set in semiautomatic or manual modes, it dosent work in AUTOmatic modes
Posted on Nov 18, 2007
Single shot mode not servo/C modes
Focus sensor set for center
Make sure exp. comp is not set on -(minus) side.
Make sure your subject is locked on and not moving out of the autofocus (center) sensor.
Posted on Jan 03, 2008
What camera that you are having problem with those flashes?
Will switching the two have the same problems.
Make sure it is fully pushed forward into hotshoe & locked:-)
Try shooting second current, this will save you the repair costs.
Your exposure compensation was set to zero, but was your flash compensation set at zero?
Posted on Jan 18, 2010
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