Question about Canon Speedlite 550EX TTL Flash

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Canon Speedlight 550EX with 40D

I started having intermittent problems with my 550EX flash on my newer 40D. Every once in a while I get a totally blown out image for no apparent reason. Have checked the settings and can't figure it out. I used my Canon 10D at a function and it doesn't happen with the 10D. Anyone else have this problem?

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4 Suggested Answers

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SOURCE: Canon Speedlite 550EX

 I know you probably have already fixed the problem, but in case you didn't, or just to help others with the same problem:
 This morning I connected my 550 EX to my camera and had the same issue with the info on the LCD flashing incessantly. Turned out to be the diffuser on top of the flash head, the one you pull out, then down over the flash to soften the light. If the diffuser is pulled out even two millimeters from its resting position, the LCD won't stop flashing! Just push it back in, and voila!
   hope this can be of help

         Lucio

Posted on Jan 06, 2008

  • 216 Answers

SOURCE: Range bar

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

atdlee@netzero.com

Posted on May 19, 2008

  • 685 Answers

SOURCE: 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.

Posted on Feb 28, 2010

  • 1 Answer

SOURCE: the 580EX is firing but

When the flash mode TTL. Then this situation can occur if the proximity is working with other studio flash light traps. Your work makes flash another flash while TTL metering. And when is your main flash another flash did not have time to recharge.

Posted on Oct 02, 2010

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Canon speedlite 550ex stuck on 17mm


You need to pull out the White Reflector Sheet out then push it fully in.

atdlee@netzero.com

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I broke a lens once and just went and bought a New / Used Bounce Flash that had a uneversal flash-boot. most cameras have a flash plug in to acommidate Auto Flash Modes. If You Know how to test Cameras and Adjustable 'Bounce" flashes like yours PAWN SHOPS are a PARADISE.

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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

550 ex zoom stuck on manual


Hi Liz,

Because this thread is more than a year old, I sincerely hope you figured out the solution to the zoom problem with your flash. I was having the same issue with the 550ex and found the simple solution on a forum about Canon Flash Photography.

Make sure that your diffuser panel (wide panel) is off and securely seated in the top of the flash unit. When the wide panel is in the down position, it forces the flash into manual mode at the widest setting.

Hopefully this little tip will come in handy for someone out there reading this thread.

Good luck!

Mar 05, 2011 | Canon Speedlite 550EX TTL Flash

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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

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

2 Answers

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I do medical/photo equipment repairs & IR conversion, but I'm in the USA.
Over 20 years and Canon knew about that problem including many photographers. Most of Canon flashes can not do manual or aperture mode because they have to flash sensor.
Now they have it on the 580EXII. I guess Canon has no photographer working in the flash department.

Canon screwed photographers, buy a Metz, Vivitar, Sigma, Sunpak, or NIkon.

Alexander
atdlee@netzero.com

Nov 27, 2007 | Canon Speedlite 550EX TTL Flash

1 Answer

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

Oct 09, 2007 | Canon Speedlite 550EX TTL Flash

1 Answer

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http://www.uscamera.com/550ex.htm i did the same with my 430ex ordered part from url above. need to do a little soldering though.

 

 

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ALL Canon digital EOS cameras will work with E-TTL only. Solution: you need EX flash for full auto.

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