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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5 Suggested Answers

  • 1 Answer

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

  • 20 Answers

SOURCE: canon eos 40D error 99

Check this link: www.richardsnotes.org/archives/2005/04/29/50mm-lens-contact-points/

Posted on Nov 28, 2008

mvititoe
  • 14 Answers

SOURCE: Canon 40D LCD Wont come on buSY flashes in view finder

Okay, this is simple. Your camera can take several pictures at one time in a burst. However when you release the shutter button your processor takes a second to actually SAVE the pictures to the card in the camera. One thing than has helped me in my wedding photography business is to buy the fastest speed cards I can find. It significantly reduced my "busy" time.

Posted on Dec 31, 2008

aranhadesign
  • 54 Answers

SOURCE: my canon eos 40D says busy when trying to upload...

i often find with SLRs (and other proprietary cameras) its far safer to use a card reader.

Posted on May 06, 2009

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1 Answer

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

AF Beam Cover for 550EX Speedlite


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.

Oct 09, 2007 | Canon Speedlite 550EX TTL Flash

1 Answer

Canon 5D and canon 40D are they type A or type B cameras as per 380 EX manual


Hi Bruce,
You have the latest cameras and they will work with ETTL II with Canon 430EX/550EX/580EX and 580EX II. Earlier models use ETTL and films use TTL.
Hope they are helpful.
atdlee@netzero.com

Jan 13, 2010 | Canon EOS 40D Digital Camera

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

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

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

550ex PC sync socket conversions


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

AF Beam Cover for 550EX Speedlite


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

Broken hotshoe for 550EX


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.

 

 

Aug 21, 2007 | Canon Speedlite 550EX TTL Flash

3 Answers

Not working with my Rebel XTI


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

Oct 20, 2006 | Canon Speedlite 540EZ TTL Flash

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