The unit slowly turns off just like it has losing it power, even though my batteries are fresh and when I turn it on again after a few seconds it will be the same again
SOURCE: I have a canon 40D and a speedlite 580 second sync not working
If you are not in P, AV, TV or M then the camera will not allow that feature. The picture modes disable many higher, more sophistocated features.
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still the problem of my flash exist, I think it has an internal problem
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