Question about Canon SPEEDLITE 580EX TTL Flash

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580EX speedlite not firing

My 580EX speedlite stopped firing on my 20D camera body. I know it is getting connection because it fired once than stopped. Do you have any ideas of what this can be?

Thank you,
Gwen

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  • 57 Answers

Does the pilot lamp light up? If so can you fire it manually by pressing on it? If the batteries are low it may simply just be taking a while to charge, the camera will not wait for it to be ready to fire and it may seem to be not working. If your flash can be fired manually however, there may be a problem with the cameras shutter or the hotshoe. You can do a basic check by pressing the star button at the rear of the camera, you should get a pre-flash. If not, there is a problem with the cameras hotshoe which you will need addressed by a service centre. If you get a preflash you can next check the cameras shutter by setting the second curtain to sync with the flash. This can be done via the cameras "Custom Function" menu, c-Fn 15. Set the camera to TV mode and chose a 1 second exposure. Take a shot with the flash attached, if the shutter is working correctly, the flash should fire a pre-flash and then a main flash. If it doesnt, the switch inside the shutter is broken and the shutter needs to be replaced. This is a pretty labour intensive repair and you may consider an upgrade as more economical.

Posted on Apr 15, 2009

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1 Answer

The flash ratio between a master unit mounted on my Canon 5D Mark II and slave doesn't work properly. A couple of shots are fine but then all of sudden the slave unit fires ar full power, then a few week...


If you had the ATG Gold MG8k Flash Kim X3, then your 430EX II or 580EX II can transforms into wireless radio ATG ETTL II.

If you are using the outdated wireless IR ETTL with a 580EX II as a Master. Then you have to set the Slave (ATG/580EX II/430EX II) body facing close to the Master.

atdlee@netzero.com

May 20, 2014 | Canon Speedlite 580EX II TTL Flash

1 Answer

Canon Speedlite 580ex ii - won't work with camera


Caroline, you should try to set the camera on "M" and the flash in 2nd curtain flash sync.

Or set flash in ATG wireless IR ETTL Slave modes and pop-up the flash on Canon EOS-70D.

Truly,
atdlee@netzero.com

Feb 08, 2014 | Canon SPEEDLITE 580EX TTL Flash

1 Answer

Speedlite 580 pilot light on but flash wont fire


More info needed: Will the flash fire when you push the test button? Have you rest the camera you're using to factory defaults while the flash is mounted on the camera and turned on?

Jan 06, 2014 | Canon Speedlite 580EX II TTL Flash

1 Answer

My canon 580 EX II stops firing even with new batteries


You must disable the 580EX II form using the 4AA.

4AA must be needed when using hv power pack.

Just let the 4AA use & display the LCD panel.

More help, repairs & troubleshooting send me an email.

atdlee@netzero,com

Oct 21, 2012 | Canon Speedlite 580EX II TTL Flash

1 Answer

I have been using my Canon 580ex ii with my Canon 5d mark ii. It will not fire at all now. I also tried my old 420 ex speedlite and it will not fire either. But, they both work on my Canon 40d.


You can actually set the external flash not to fire in the menu settings of your camera. Check there or try mounting the flash on your camera, turn both on and reset your camera to factory default settings through your camera menu settings.

Oct 08, 2012 | Canon Speedlite 580EX II TTL Flash

1 Answer

I have a canon 60d and i mounted on the 580ex speedlite and it turns on but it wont fire. help?


Hello,
Usually if my flash isn't firing I check to see if the flash is mounted into the hotshoe properly. I take it off the camera, put it back on and tighten it down then test it.
If that doesn't work then check the display of the flash and see what mode you are on or if the display is flashing. If it is flashing then the wide angle adapter may be covering the flash which you will need to take off and put back inside the flash. It's that white plastic tab that slides in and out of the flash head.
Hopefully that will fix it.
-Matt

Apr 05, 2011 | Canon Speedlite 580EX II TTL Flash

1 Answer

Remote Firing of Flash Units


The EOS 40D does not have a transmitter built in. The remote flash units must be set to "Slave" and the on-camera external flash unit (eg Speedlite 580EX) or transmitter (ST-E2) set to "Master". Note that the Speedlite 430EX doesn't have the function to act as Master and you need a minimum or the 580EX or a ST-E2 speedlite transmitter (or similar) as Master/s.

Jul 29, 2008 | Canon EOS 40D Digital Camera

3 Answers

Canon 580ex "pops" in a baad way


Buy the flash tube and the cap., if they are bad.

It is not that hard, I can help.

Alexander
atdlee@netzero.com

Sep 04, 2007 | Canon SPEEDLITE 580EX TTL Flash

4 Answers

Flash stopped workin as master in wireless mode?


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?

May 25, 2007 | Canon SPEEDLITE 580EX TTL Flash

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