Canon 85mm can't find the subject

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alainn New Member • Posts: 1
Canon 85mm can't find the subject

Guys, I was recently doing a photoshoot and, literally out of nowhere, my AF stopped focusing on the subject properly.
When I press the half-button to focus, the autofocus starts to vary between blurring in front of or behind the subject. This happens for about two seconds and, suddenly, the camera beeps (as if it had detected the focus) and takes the picture, but the focus is completely behind the subject.

I restored the camera to factory settings, thinking I could have made a change without realizing it, but the problem remains. I believe it is a technical problem and not a configuration problem, but I would like to know your opinion.

I'm using a 6D mk1 and a Canon 85mm 1.8 USM AF.

Note: when using manual focus, the camera beeps whenever the subject is in focus. Unlike when I activate the AF function.

I apologize for my English, and hugs from Brazil! 

Canon EF 85mm F1.8 USM Canon EOS 6D
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