Upon finishing the audio wizard you will see the camera's software interface and a little screen will display whatever the camera is shooting. From here you will be able to record clips and also take still shots. To adjust the image quality, go to Camera-Settings; an automatic setting for Exposure and Gain is implemented by default. You can adjust these manually by unchecking the box. Adjusting the exposure and gain levels up - especially if you are in a dark environment - will give you a brighter image than the default. Be aware, though, that overexposure will make the image very contrasted.
From the Device Settings tab you can play with a whole host of picture settings such as brightness, contrast and sharpness. If your image looks out of focus, you should physically adjust the lens on the camera itself.