Question about Canon Speedlite 540EZ TTL Flash

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Wont work my 540ez wont work in ttl mode with my rebel xt it works on manual and muli modes but not on ttl mode i cant get it to flash in that mode, id like to be able to use it without having to figure out the exposuer every time and was woundering if other people where having this problem too?

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Re: wont work

According to the Canon feature chart I have here; the 540EZ Speedlite flash is not compatible with the Digital Rebel XT in ETTL mode. The 480EG is also not compatible. The 550 or any of the others in that product line are would work. David Millier Advance Camera Repair

Posted on Feb 27, 2007

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Faint lcd display

I'd keep on using it if I were you. As long as the flash is being used exclursively in manual mode then there isn't really a need to be able to see the display.

Mar 19, 2013 | Canon Speedlite 540EZ TTL Flash

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Promaster ftd 5700

Hello, You will need to get the correct interface module. You need the module that works with Canon digital cameras with E-TTL II which includes the Digital Rebel XT. I bought the flash and the interface module at Wolf Camera's going out of business sale and had to go through three interfaces to get the correct one for my XT.

Jan 10, 2012 | Quantaray QTB-9500A 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


Yes and no. It will work fine as a manual flash, putting the burden of figuring out correct exposure on your shoulders. It will work fine in the automatic modes on a Nikon camera.

Quantaray makes a Canon version of the flash which will work in the automatic modes on the Rebel XSi.

Jul 27, 2010 | Quantaray PZ-1 DSZ for Nikon TTL Flash

1 Answer

I just Bought a Canon Speedlite 540EZ it will not fire in the hot shoe of My Rebel XTI are they compatible

No. The rebel, or any digital canon camera requires the use of the EX or EX II series flashes.

Jan 19, 2010 | Canon Speedlite 540EZ TTL Flash

1 Answer

The flash attachment fades out photos on my Canon Rebel digital

set the flash in A mode if not set camera aperture close

Aug 01, 2009 | Canon Speedlite 540EZ TTL Flash

1 Answer

Is a flash compatible with my camera?

Most Canon Digital SLRs use the ETTL metering system. I can't find any decent specs or manuals on the net about this flash whether its ETTL or TTL. I could find models that are specific to Canon and Nikon, so check that first too.

Also be wary of the flashes trigger voltage. A voltage too high might fry the camera when its mounted on the hotshoe, so see if you can find it in the manual.

You can always use this flash off camera in full manual mode. To find out more go to or go to the Strobist Group on

Jul 06, 2009 | Quantaray Camera Flashes

1 Answer

Canon speedlite 540ez

I am having the exact same problem, but i just realized that this flash probably is not compatible with my newer canon digital rebel XT... are you using it with this camera or is this the same setup you've used before with success?

Jun 05, 2008 | Canon Speedlite 540EZ 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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