RF 14-35mm f/4: circle in image at 14mm

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pawn Veteran Member • Posts: 3,261
RF 14-35mm f/4: circle in image at 14mm

Hi

I recently bought a RF 14-35mm f/4 lens and took it out for a test drive to see how well it can handle flares from the sun.  When opening the image (taken @ 14mm), I immediately noticed the circle around the image.  I also noticed it at 16mm.  It does not seem to exist at 35mm.  Here is an image taken @ 14mm:

At the time the picture was taken, I had a UV filter and the lens hood on.

What are the possible causes?

Thanks

Duy

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