Dark rings around JPEGs with Sigma lenses

[Canongirl745]

When I shoot JPEG with my 1D-X and Sigma art lenses, I get dark rings around the JPEGs. I shoot both raw and JPEG, and when the CR2 converts to a DNG format, the rings disappear. But no matter what settings I use, the JPEGs are unusable, and I can't find anything in Photoshop or Lightroom to remove the rings. Can someone tell me what's wrong and how to repair it? I get otherwise gorgeous pictures with the Sigmas. I included a test image below: 

[jrhoffman75]

Do you have any of the in-camera processing options checked, like peripheral illumination corrrection?

Found this:

https://www.dpreview.com/forums/thread/4053451

[ebiggs1]

"I get dark rings around the JPEGs."

Are you referring to the 'target' shaped dark rings?  

"When I shoot JPEG with my 1D-X and Sigma art lenses,..."

The obvious question, does it happen with all your lenses?  This will tell me if it is a lens or camera problem.  BTW, there is nothing I know of in LR or PS that will remove them except manual labor!

[Waddizzle]

That resembles a double exposure of the third kind.

[kvbarkley]

And here.

http://www.canonrumors.com/how-to-fix-weird-visual-behaviour-with-your-eos-5d-mark-iv-sigma-lenses/

[lydia_orozco]

Thank you SO much this solved my issue with the same problem!!!

[jrhoffman75]

Welcome to the forum.

Are you using the camera company lens hood? Is it on correctly; it is sometimes possible to put the lens hood on 90 degrees off? Are you using any filters?

These are things that can cause vignetting.

What camera and lens? Can you post a screenshot?

[kvbarkley]

Suspicious link. Probably spam.

[jrhoffman75]

Welcome to the forum.

Yoiu need to clarify this post if you want assistance.