Canon 80D Blurry Focus

[meganacuna]

Hi all! I'm at my wits end here and hoping someone can help me. I bought a new Canon 80D in February and can't seem to get tack-sharp photos or video. I'll put a link to a video sample here so you can get an idea of what I'm talking about. This was shot with face-tracking autofocus, f/2.8, 400 ISO and 200 shutter speed with the Sigma 35mm F/1.4 lens. Does anyone know what I can do to fix this?

https://meganacuna.com/wp-content/uploads/2019/09/35mm-test.mp4

Here's a photo with a similar problem. If you zoom in on my face you can see that it's pretty blurry.

[ebiggs1]

This is what I would have done to your photo. It is cropped to 8x10. Opend in ACR with settings adjusted and unsharp mask applied. 

I think it looks fine!  

[Waddizzle]

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@ebiggs1 wrote:

"How could this shot be improved? "

This is putting the cart before the horse. Let's make sure we are dealing with fully working camera/lens gear combo as the OP states it is all shots.

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I think the gear is working just fine.  Look at the grass around her feet.  It is tack sharp.  

[ebiggs1]

"I think the gear is working just fine."

I agree but I want the OP to prove that before we make suggestions.  I at first thought it was camera motion or shake, movement. The vid looks nice and a little post on the still makes it look nice, too. The OP needs an editor that does lens correction.