Consistent Overexposure with EOS Rebel Cameras & Speedlite Flash

[AnnieO]

I have a Canon T6i - use Auto mode- with flash bracket, shoe cord and a canon Speedlite. All is fine then in September it started to overexpose the photo - not every one but many at the event. then I read on a forum that it happens with Canon Speedlites - I then got a Neewer flash, and two Godox flashes - same issues. All in TTL setting. I then got the Canon T8i - and same issues. Then I tried new shoe cords - same issue. Tried not using the flash bracket - same issue - then I tried the new camera and a different lens - same issue. I am at the end of my experiments and cannot figure the issues. Please help - I have many events coming up and need this to work. I have asked so many people and no one can seem to help. I changed batteries, I used the rechargable battery for one of the Godox. All the same issues HELP

[deebatman316]

Which versions of the 430EX and 580EX series. Canon has released multiple revisions of these speedlite units. These speedlites when mounted to your camera should say "E-TTL" if they switch to "TTL". Your speedlite is not communicating with your camera correctly.

430EX series

• 430EX original (2005-2008 Discontinued)
• 430EX II (2008-2015 Discontinued)
• 430EX III/III-RT (2015-Present)

580EX Series

• 580EX original (2004-2008 Discontinued)
• 580EX II (2008-2012 Discontinued)

-Demetrius

EF 16-35mm F/2.8L III USM, EF 24-70mm F/2.8L II USM, EF 28-135mm F/3.5-5.6 IS USM, EF 50 F/1.8 STM & EF 70-200mm F/2.8L IS III USM

EOS 40D & 5D Mark IV

430EX III-RT & 600EX II-RT

[AnnieO]

I have many sample pics to show you. How do I do that?

[deebatman316]

Note: Instructions are for a Windows Computers.

Step 1Step 2Step 3Step 4

Step 5

Step 6 Final Image

-Demetrius

EF 16-35mm F/2.8L III USM, EF 24-70mm F/2.8L II USM, EF 28-135mm F/3.5-5.6 IS USM, EF 50 F/1.8 STM & EF 70-200mm F/2.8L IS III USM

EOS 40D & 5D Mark IV

430EX III-RT & 600EX II-RT

[AnnieO]

examples

[deebatman316]

Sorry AnnieO there isn't any EXIF data with these pictures. If you can find the EXIF data please post a screen shot of it separately. What is your Canon speedlite set to when this occurs. Is it set to E-TTL or TTL. The overexposed pictures look like the speedlite was set to TTL instead of E-TTL which causes overexposure. A speedlite set to TTL will always cause gross overexposure.

-Demetrius

EF 16-35mm F/2.8L III USM, EF 24-70mm F/2.8L II USM, EF 28-135mm F/3.5-5.6 IS USM, EF 50 F/1.8 STM & EF 70-200mm F/2.8L IS III USM

EOS 40D & 5D Mark IV

430EX III-RT & 600EX II-RT

[AnnieO]

Thank you I tried to show pics from the same events so you can see how some are ok and others are not. I believe they were all ETTL I have no idea what is EXIF -

[deebatman316]

EXIF Data is data info about a given picture. Cameras usually use EXIF Data to show exposure settings, camera manufacturer, Lens make, lens focal length and other info about a given picture.

The area in the red square is the info that is needed

-Demetrius

EF 16-35mm F/2.8L III USM, EF 24-70mm F/2.8L II USM, EF 28-135mm F/3.5-5.6 IS USM, EF 50 F/1.8 STM & EF 70-200mm F/2.8L IS III USM

EOS 40D & 5D Mark IV

430EX III-RT & 600EX II-RT

[deebatman316]

Actually some of your pictures do have EXIF Data attached but all of the pictures that are overexposed lack EXIF Data. Your other pictures report that you were using a Tamron lens. Did you switch out lenses during the shots.

-Demetrius

EF 16-35mm F/2.8L III USM, EF 24-70mm F/2.8L II USM, EF 28-135mm F/3.5-5.6 IS USM, EF 50 F/1.8 STM & EF 70-200mm F/2.8L IS III USM

EOS 40D & 5D Mark IV

430EX III-RT & 600EX II-RT

[kvbarkley]

Are these all with the same lens? That seems to be the only constant. Switch to AV mode and set f/16. Try to do a few depth of preview tests to see if the lens stops down.

[deebatman316]

The OP is using TAMRON 16-300mm F/3.5-6.3 Di II VC PZD lens in some pictures with the EXIF Data intact. The pictures without the EXIF Data intact are the overexposed shots.

-Demetrius

EF 16-35mm F/2.8L III USM, EF 24-70mm F/2.8L II USM, EF 28-135mm F/3.5-5.6 IS USM, EF 50 F/1.8 STM & EF 70-200mm F/2.8L IS III USM

EOS 40D & 5D Mark IV

430EX III-RT & 600EX II-RT