Canon EOS C100
White Balance
White Balance is simply a process of calibrating the colour of the picture under different colour temperatures - it tells the camera what is white under different colour temperatures. For example, the colour temperature outdoors is typically 5600 Kelvin, which appears to the camera as blue; the colour temperature indoors is about 3200 K and images to the camera appear reddish.
Before you white balance, make sure you have enough lighting and that you adjusted the exposure. You will also need a white card or make sure that there is something white in the shot from which you can calibrate the camera's white balance.
Custom White Balance
You can custom set the white balance using the A or B mode icons. This is perhaps the easiest and fastest way to white balance and get accurate colour reproductions.
Always set the White Balance in the same lighting conditions where you will be doing the shoot.
Press the WB button as shown, which will highlight the white balance mode icon in the viewfinder.
Use the joystick to select the custom mode, A or B icon.
Point the camera at a white card (set the card where the subject is, don’t just hold it in front of the lens), and zoom in so that the white fills the viewfinder.
Press the White Balance wedge icon (just above the WB button on the camera). The mode in the viewfinder will flash a few times before it settles - the white balance is set. You will also see a new value for the colour temperature next to the mode.