EOS 5D Mark III Overexposing Everything

[whyora]

My camera is a 5D Mll.  I often use auto focus and auto exposure when shooting action photos.  Lately, the camera is over exposing everything.  It is even to the point that it is difficult to correct a RAW image in Photoshop.  TYIA

[wq9nsc · Accepted solution]

Is it showing overexposure on the "meter" during composition?  Did you accidentally set exposure compensation to over-expose or maybe locked ISO at some high value?

Rodger

[Peter]

Does it do it in Live view also? Which metering mode?

[wq9nsc · Accepted solution]

Is it showing overexposure on the "meter" during composition?  Did you accidentally set exposure compensation to over-expose or maybe locked ISO at some high value?

Rodger

[whyora · Accepted solution]

I often set to a fairly high ISO to force higher shutter speeds. 
Oh!  I just checked and my exposure compensation was set high!  I don’t remember doing that but I guess it was “operator error” after all. 
Thank you wq9nsc and everyone who replied!

[kvbarkley]

Does this happen with more than one lens? Look into the lens to make sure it is stopping down during exposure.

[whyora]

Yes, with both my 24-105 1:4L and my 70-300 1:4-5.6L.  Both Canon. 

[deebatman316]

When you say auto exposure what mode are you using M, Av, Tv, P or Full Auto.

[whyora]

When I’m action shots (I.e. sailing races) I normally use P.

[deebatman316]

What happens with the camera set to Full Auto. Are you using a speedlite if so what brand and model.