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Webcam Zoom level changes by itself on Teams calls

Stephen Walker 20 Reputation points
2026-03-09T13:25:32.45+00:00

I have a Logitech C920 with Logi Tune and G Hub on a new Windows 11 pc running Office 365.
The Zoom level in meetings changes by itself apparently.
Another online meeting app is similarly affected.

Microsoft Teams | Microsoft Teams for business | Meetings and calls | Audio and video
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  1. Q&A Assist
    2026-03-09T13:25:48.01+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    The zoom level changing by itself is typically caused by camera control software or Windows camera settings adjusting the image dynamically, not by Microsoft Teams itself.

    Try these steps to stabilize the zoom:

    1. Check for other apps using or controlling the camera
      • Close all other apps that might be using or adjusting the camera (Logi Tune, G Hub preview, other meeting apps, Camera app, Skype, etc.).
      • Restart Windows after closing them to ensure they fully release the camera.
    2. Test the camera outside Teams
      • Open Start > Camera and verify whether the zoom level stays stable there.
      • If zoom changes in the Camera app as well, the issue is with the driver or Logitech software rather than Teams.
    3. Reset Windows camera permissions and behavior
      • Go to Start > Settings > Privacy & security > Camera.
      • Make sure Camera access and Let apps access your camera are turned on.
      • Ensure Let desktop apps access your camera is turned on so Teams and browsers can use it.
      • If these toggles are already on, turn them off and back on again, then restart Windows. This can reset how Windows mediates access to the camera for desktop apps like Teams.
    4. Check for driver and Windows updates
      • Update Windows 11 fully.
      • Update the Logitech C920 driver from Windows Update or the device manufacturer.
      • If the problem started after a recent update, test with a different USB port (preferably a motherboard USB port instead of an expansion card) as some users have resolved camera issues in Teams by moving the webcam to a different port.
    5. Lock camera settings at the device level
      • Use the Logitech software (Logi Tune / G Hub) to set zoom/field-of-view and disable any auto-framing or auto-zoom features if available.
      • Keep only one Logitech control app running; multiple camera-control apps can fight over settings and cause apparent random zoom changes.
    6. Compare behavior in Teams desktop vs web
      • If the zoom is stable in Teams on the web but not in the desktop app, collect Teams logs and contact support:
        • Desktop app logs: %appdata%\Microsoft\Teams\logs.txt
        • Web client call/meeting logs: press Ctrl + Alt + Shift + 1 during a call; logs are saved to %userprofile%\Downloads\MSTeams Diagnostics Log DATE_TIME.txt
      • Then contact Microsoft Teams support via the Microsoft 365 admin center with these logs.

    If the zoom still changes after these steps and it also happens in another meeting app, treat it as a camera/driver/Logitech software issue rather than a Teams-specific problem and focus on Logitech settings and drivers.

    References:

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  1. Jay Tr 9,630 Reputation points Microsoft External Staff Moderator
    2026-03-09T16:07:01.87+00:00

    Hi @Stephen Walker, 

    Welcome to Microsoft Q&A forum. 

    Thank you for reaching out and sharing a concern related to your Logitech webcam behavior where it zooms and other online meeting apps are also affected. This could be due to camera control software conflicts, Windows camera effects, and drivers. To resolve the issue, please follow these steps: 

    1. Eliminate software conflicts first (most common) 

    When more than one app control the webcam (Logi Tune, G Hub, Windows Camera effects, meeting apps), they can overwrite each other’s zoom or field of view settings, which looks like random zoom changes.  

    • Quit Teams and the other meeting app. 
    • Fully exit Logi Tune and G Hub (not just close the window). In Windows 11, check the system tray icons and exit from there. 
    • Restart the PC to ensure the camera is released and no background component is still controlling it.  
    • After reboot, do not open Logi Tune or G Hub yet. 
    1. Test outside meeting apps to prove where the zoom change originates 
    • Open the Windows Camera app (Start, then type Camera). 
    • Watch the preview for a minute or two without opening any meeting app. 
    • If the zoom still changes in the Camera app, then the issue could be at the driver, Windows camera effects, or Logitech software layer, not Teams.   If it stays stable in the Camera app but changes once you join meetings, the meeting app is likely applying a camera effect or triggering a setting reset. 
    1. Turn off Windows “Automatic framing” 

    There is a Microsoft Q&A thread where the camera zooms in and out on its own and multiple answers report that disabling the Camera app’s Automatic Framing stops it. To do this, please try these steps 

    • Open the Camera app. 
    • Look for Automatic framing (or a framing feature) and turn it off.  
    • Even if the symptom appears only in Teams, Teams can consume the Windows camera pipeline, so disabling that OS level effect can stabilize zoom. 
    1. Keep only one Logitech camera control app “in charge” 

    Logitech describes multiple software options that can adjust zoom and other settings (Logi Tune, G Hub, Options+). Running more than one can cause competing settings. 

    • Pick one controller app for the webcam (either Logi Tune or G Hub). 
    • Disable webcam control in the other one, or uninstall the one you do not need, so only one tool is applying settings.  
    1. Update the webcam driver 
    • Open Device Manager. 
    • Expand Cameras. 
    • Right click your webcam and select Update driver. 

    I hope this information is helpful. Please follow the steps above and let me know if it works for you. If not, we can continue working together to resolve the issue.  

    Thank you for your patience and understanding. If you have any questions or need additional assistance, please don’t hesitate to reach out so I can continue to support you. If you found the response useful, please consider marking it as accepted, as this may help other community members who are looking for similar guidance.  

    I look forward to continuing the conversation.

    If you have extra questions about this answer, please click "Comment". 

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.     

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