I use 580ex with 30d and my flash stopped working very randomly as a master in wireles ettl mode, i can see the flash fires, but in the photo appears as if not fired. it works on manual wireless.and in regular ettl. allthought the ettl 11 mode does not shows on display.
I have had this happen to my 580EX flashes many times. From what I understand, the internal circuit board can get overheated and burned fi you fire to many flashes in a row without letting the flash cool. Canon says not to fire more than 20 times in succession. Then you have to wait 10 minutes before firing the flash again!
Each time, I have sent the flashes into Canon for repair. I think they have a flat rate of $150.
I had similar problems - actuall was on one occasion settings - make sure switches are correct,,,one time it was the sslave flash being worn out - whole flash head had to be replaced as it was outputting 2.5 stops+ less light than specs and not proper calibrated at last repair.
these flashes i foind are reliable as slave master as long as you are strict about distances and positioning until either
batteries are dying
positiong not allowing communccation
flash head needs repair
of course settings correct.
I usually take a test shot of the slave flash firing before i start any lengthy or important shoots of poses or scenes
Are you using radio triggers for the wireless bit? The 580EXII doesn't work with Master Salve when using radio triggers.
Now, go to a real camera store and bring your equipments with you.
Say to them:
I have a Canon 580EX Flash and wanted to know if you have the Quantum Turbo Battery with the Adapter Cord for my 580EX?
Ask to see if you can test them out.
This adapter does not go into the 4AA battery hold but to the flip out cover, AC Adapter. You need to plug it into the flash.
Press "On" from the Q battery, then set flash to "Master" on camera and other EX to "Slave".
Turn all three on(1st flash, 2nd flash and camera.
Do not press shutter button but press the pre-flash(pre-auto lock/flash) on camera body. On the EOS-1Ds Mark III has "*".
Both flashes should come on.
Now, press the camera shutter using "ETTL Modes" and look at the image from the LCD screen...is exposure correct?
Address to this address from now, please: [email protected]
PS: You did set both flashes into same channel and with no exposure adjustment, right?
Usually answered in minutes!