Note that some cameras lock both the exposure and focus together so depending on where you focus, you may change the lighting of your photo. As for white balance, there are four settings to choose from. It is best to match them according to the environment you are shooting to light up your photos better. For example, Cloudy and Daylight are more suitable for outdoor shoots whereas Flourescent and Incandescent are used indoors. That said, you can choose to mix them up to create different tones and moods.