Symptoms
- Video looks grainy, dark, or pixelated
- Image looks out of focus
- Video quality is worse than it used to be
- Everything else on the computer looks fine, just the camera output is poor
Likely causes
- CommonPoor or backlit lightingWebcams struggle in low light and produce grainy, dark video; sitting with a bright window behind you also washes out your face.
- CommonSmudged or dirty lensFingerprints or dust on the small lens noticeably blur the image.
- CommonLow resolution or bandwidth setting in the appSome apps automatically lower video quality to save bandwidth on a slow connection.
- PossibleCamera set to auto-focus but placed too close to the subjectMany webcams have a minimum focus distance and blur if you're too close.
- Less commonOutdated webcam driver or firmwareOlder drivers can limit resolution or cause processing artifacts.
What to do
- Add a light source in front of you (like a desk lamp) rather than relying on backlighting from a window or overhead light.
- Wipe the camera lens gently with a soft, dry cloth to remove smudges or dust.
- Sit back slightly if the picture looks blurry, since most webcams focus better a bit farther from the lens.
- In the video call app's settings, check if HD or higher resolution video is enabled and turn it on if bandwidth allows.
- Close other apps and browser tabs using significant internet bandwidth during the call.
- Update the webcam driver via Device Manager or the manufacturer's website.
- Test the camera in the built-in Camera app to see if the quality issue is the camera itself or specific to one video call app.
Tools and parts
- Soft cloth
Desk lamp for lightingSearch: “adjustable desk lamp for video calls”
When to call a pro
If video stays blurry across every app and lighting setup with a clean lens, the camera sensor itself may be degraded and worth replacing.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.