Question about Canon SPEEDLITE 580EX TTL Flash

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Flash stopped workin as master in wireless mode?

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.

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  • joelgue Feb 20, 2008

    I have the same prolbem: only the preflash light fires off



    ******************************************************************



    When trying to fire flash , it goes off just before the shoot but not during the obturation. and this only happens when flash is set on ETTL. On manual mode it doesn't fire at all,
    I obvioulsy checked the batteries, nothing wrong with it.
    Only red light showing, not the green one



    **********************************************************

    I haven't found any solution so far






  • boedi Jul 07, 2008

    My 580 EX II has a similar problem: I set it to "master on", and it worked firing itself and triggering my slave (420 EX). After changing once to have the master not flashing itself, it is not showing a light on the pilot nor does it trigger the slave anymore. Switching it back on to active does show the respective symbols on the LCD display but does not work in terms of firing from the master or the slave.

    In other words: As soon as I switch to master mode, the Flash does not work anymore.

    any idea or a way to really hard reset the flash?

  • zmn2002 Dec 08, 2008

    I have a 580EX that I used as master and a 430EX for slave. Both set to use channel 2, ETTL. Both flashes seem to fire but the picture is extremely underexposed.



    If I used the 580EX with the master/slave off, it seems to be working fine.

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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.

Posted on Nov 30, 2008

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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

Posted on Jun 02, 2008

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Are you using radio triggers for the wireless bit? The 580EXII doesn't work with Master Salve when using radio triggers.

Posted on Mar 12, 2008

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Hi Joelgue,

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: atdlee@netzero.com

PS: You did set both flashes into same channel and with no exposure adjustment, right?

Posted on Feb 21, 2008

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Truly,
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My flash fires before the shutter opens when in ETTL mode.


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Reverting to ttl - master flash not firing


Hi Kate,

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?

atdlee@netzero.com

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I´ve been having the same problem with my 2 580´s. Sent one to Canon but still has the same problem. How did you solve your problem?

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Iam having a problem getting the two flash units to sink. I have set the parameters by the book for the master and the second the slave. They are both on the same channel. They are both on the ETTL mode....


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that the camera/flash set-up I use ... there are many variables - iso/metering setting/shutter settings/flash settings .
If it's a flash function problem, try this to isolate it - first, with the diffuser/reflectors tucked into the flash head, and the head straight up, with the flash set in master mode, turn it on and look on the back screen. push the mode button til you see the ETTL in the upper left of the screen .. then press the set button in the center of the dial and the nuber in the center of the display should flash (+0) while the light is flashing, rotate the dial to change the setting (i usually under power by 1/3 stop. Play with the exposures a few times to get the feel for what the EV shifts do to your exposure. generally speaking, for interior low-light, i prefer to bounce off the ceiling (if low ceilinged), if there's too much direct it will give you an uneven and predominantly underexposed image.
if you prees the mode button you will come to the same options for adjusting the output in manual mode, but it will not work with the autoexposure in the camera.
Try playing with the ETTL settings
I think the problem may be that you have somehow altered the power output setting on the 580.

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