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Canon speedlites 550EXII and 550EX Set up for master and slave units in TTL

Cannot get my speed lites 550EXII as a master unit and my 550EX as a slave unit to fire in syn ch in TTL mode. The 550EX wants to lag behind or fire after the 550EXII (master unit ) fires. What can I do to have them both fire together with the 550EXII being the master unit on the camera.

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From what I've experienced the slave need to be set to B-1. Don't know why.

Posted on Nov 04, 2008

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If you are using the outdated wireless IR ETTL with a 580EX II as a Master.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

atdlee@netzero.com

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atdlee@netzero.com

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Canon 550 ex speedlight - flashes okay. Won't sink with 60d (tried different cameras at dealer - same problem) Camera is okay .


Bruce,
Try these steps:
1. Set camera to manual2. Set shutter to 1/60
3. Set aperture to F5.6
4. ASA/ISO 200
5. 550EX on hotshoe
6. Do not set on slave or master
7. Turn on flash


Display must shows, ETTL.
If that doesn't work, you have to use the flash on manual.
Some of this model will not work fully on ATG Canon EOS-1D C, ATG Canon EOS-1D X IR, Canon EOS-1D X/60D/T4i because this flash is over 20 years old.


Unless you would want it to be modified by me.
But that can be costly when you can get the 580EX II for less than $425.00 USD.


atdlee@netzero.com

Jan 01, 2013 | Canon Speedlite 550EX TTL Flash

1 Answer

Can I use the Canon Speelite 550EX TTL with a Nikon D3


No. the Nikon and Canon flahses and camera speak different "languages" in TTL. So while the flash may fire once in a while, the TTL (Through The Lens flash metering) will not be compatible and the exposures will almost never correspond and synch up. Get a Nikon SB-900 flash.

Nov 30, 2009 | Canon Speedlite 550EX TTL Flash

2 Answers

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....


Make sure the slave is far enough in fornt of the master flash to see it. If the two flashes are next to each other then the slave is not seeing the master signals.

Oct 16, 2009 | Canon Speedlite 580EX II TTL Flash

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is your master flash set on a camera? The EX II has something that makes it have a 1 second delay when using sync mode, unless the master flash is set on the camera.

Dec 27, 2008 | Canon Speedlite 540EZ TTL Flash

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I have a Canon Speedlite 580EX, the flash will not go off.


Perhaps the unit is set to master/slave mode. Look into that.

hint: Press and hold on the zoom button to get into the master/slave menu

Dec 04, 2008 | Canon Speedlite 580EX II TTL Flash

1 Answer

Range bar


Take out flash of camera.
Reload the batteries and turn on unit, without connecting to camera.

atdlee@netzero.com

May 03, 2008 | Canon Speedlite 550EX TTL Flash

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AF Beam Cover for 550EX Speedlite


http://www.uscamera.com/550ex.htm  i bought hot shoe foot for my 430ex. they ship international.

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