26-07-2013 02:22 - edited 26-07-2013 02:22
First check permissions settings.
Skype >> WinKey + C >> Settings >> Permissions >> Webcam and microphone >> drag the slider to On.
Skype >> WinKey + C >> Settings >> Options >> Video / Camera
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If you can't adjust the camera's settings with the Camera app that comes with Windows 8, you'll have to use the Desktop app to adjust your camera, but be warned, Skype for Windows 8 Modern may not necessarily play well with the settings you change them to. If you ARE able to adjust the settings through the Camera app, you should be golden.