Problem with Dig Rebel XT and EF-500 Super

[andrewkantor]

Hey, all --

I have an EF-500 Super flash (NOT the DG Super -- the plain ol' EF-500 Super). I used it with my Canon EOS 7 and got great results.

But now I have a Digital Rebel XT. And now every photo I take with my EF-500 is blown out -- completely overpowered by the flash.

I've tried various settings, and checked everything over and over. No luck. The only way to get a good photo is to set the flash exposure compensation to -2.

Does anyone have any idea why I might be having this problem? Is there something different about the Digital Rebel line compared to the 35-mm EOS? Can I not use the EF-500 with the Digital Rebel?

Thanks for any, um, light you can shed on this!

Andrew

Note: Also posting this to "Small Flash" forum

[scottbergerphoto]

Your flash is most likely not fully compatible with Canon digital cameras.
http://photonotes.org/reviews/sigma-ef-500-super/
The DG version was designed to rectify that.

[kawter2]

is it only with this lens or all your shots on the XT?

what mode are you shooting in? ISO aperature ss etc?

[andrewkantor]

Arg -- I was afraid of that. And here I thought I could use all my Canon-based equipment with the Drebel. Thanks.

(The problem happens at a variety of shutter speeds and apertures, so I assume Scott is right. Grr.)