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There are multiple potential reasons why your camera might not be working correctly. If, for any reason, the camera isn’t showing anything and/or the green LED isn’t lighting up, your camera islikely malfunctioning. As long as you know that the app uses iSight, it can be used to check whetherthe feature is functioning correctly. Then, select the camera icon from the list of options that pop up. Go to or, navigate to any chat (you can use the one with yourself), and click the plusicon next to where you’d type a message. No need to make a video call tocheck whether the camera is working. You can also enable the camera using online apps such as Facebook Messenger. You’ll seea green LED light up and, if everything is working correctly, you should see yourself using either of the two. Enabling any of the two apps will engage the camera. Thereare two apps that you’ll find on your Mac by default that use iSight: FaceTime and PhotoBooth. Open the app, right-click the app icon in the Dock, roll your cursor over Options, and click Keep in Dock.To enable the camera and check whether it’s performing optimally, you have to know which apps use it.
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Instead of going to your Applications folder to open an iSight app, add the app to your Dock to select it and open it from there. Keep iSight compatible apps in the Dock for easy access.
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Oversight works on all Macs running OS X 10.10 and later. For example, download Oversight, which can tell you when your iSight camera and microphone are active, plus which applications are using it.
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