How do I increase my cam's focus strength in windows 10?


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I have a lenovo 300 fhd webcam, I want to increase the focus of my webcam because I need to verify some documents online, but for that, I need my webcam to focus on the letters on the document. Right now, when I place my documents in front of my cam, it gets a bit blurry. I am trying to fix this issue by changing the focus strength, but I am not able to do so as shown in the screenshot. Please help me in resolving this issue.
Thank you
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Unfortunately, it's a fixed focus lens, that's why it's greyed out. The only way to focus is to move the object away from the camera until it's in focus.
 
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Two different ways to reduce the object distance:


 
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why don't you just scan them. If it has to be done from a web cam during a meeting then you need a camera with an autofocus lens. Then you have the issue that web cams have wide angle lenses and it will distort toward the edges.
In the old days, to copy documents we had special lenses that weren't cheap. The one they used to make titles and credits for movies before computers was the Zeiss 90mm macro, but it won't mount on your laptop.
 

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