Question about Canon SPEEDLITE 580EX TTL Flash

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Canon SPEEDLITE 580EX TTL Flash Problem: Flash will not stay in ETTL mode

When I set my flash up for ETTL mode withe the high speed sync button on, the flash reverts to the ttl mode for no reason. Help?

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Re: Canon SPEEDLITE 580EX TTL Flash Problem: Flash will...

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

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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If you are using the outdated wireless IR ETTL with a 580EX II as a Master.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.

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.


Feb 08, 2014 | Canon SPEEDLITE 580EX TTL Flash

1 Answer

My 580EX clicks when I turn it on... the Wide Angle shield is totally in. Plus it is set on ETTL but the Zoom - - mm and the rectangle box is flashing... it will not respond to any buttons pushed or the...

Jack, place the flash on the camera.
Then do the following:
1. Load up Canon EOS Utility software
2. Connect camera with USB Cable to computer
3. Turn on camera
4. Click on EOS Utility
5. Click on flash setting

More help send to my email.


Jan 17, 2014 | Canon SPEEDLITE 580EX TTL Flash

1 Answer

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

Are you sure those are not pre-flashes being sent out?
What mode are you in, Master, if so it is sending pre-flash to other flash.

Sep 03, 2013 | Canon SPEEDLITE 580EX TTL Flash

1 Answer

Hi, I have a Canon Speedlite 430EX II. I use it with Canon Rebel T1i. I don't really know a lot about using an external flash, I'm just an amateur I must say. I just always have it on automatic mode and...

Okay big breath, The Rebel T1i controls the flash (one reason you turn the flash on and off that's it) so you may have simply switched metering modes, with flash you should be on Evaluative mode.

Another thing is the camera may have been programed for TTL in the Menu E-TTL is the "normal" but if it's changed then the changes stays until you change it back.

I think it's the metering mode but if not you need to go into the camera Menu, Flash Control, External Flash, Flash Mode then select E-TTL. I found this all in a PDF manual of the Rebel T1i pages 139 through 141.

Hope this was a help.

Feb 15, 2011 | Canon Speedlite 430EX TTL Flash

1 Answer

I have a canon 40d and a canon 580 ex, i need to set up the 2nd curtain sync, how do i do it ? respond here or email to

There is a button with three arrows pointing to the right on your 580EX. Press this until the 3 arrows appear on your flash LCD. That is second curtain sync. The other function of that button is for High Speed Sync

Jan 08, 2011 | Canon SPEEDLITE 580EX TTL Flash

1 Answer

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.

Jan 31, 2010 | Canon SPEEDLITE 580EX TTL Flash

1 Answer

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?

Jan 04, 2010 | Canon Speedlite 580EX II TTL Flash

1 Answer

580ex switching from ettl to ttl

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?

Dec 17, 2009 | Canon SPEEDLITE 580EX TTL Flash

1 Answer

Canon 580EX clicks when turned on, cannot push buttons on back

Send it in to canon for service. This is not a simple problem that can be fixed in this forum.

Jan 14, 2009 | Canon SPEEDLITE 580EX TTL Flash

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