White Balance

in this lesson we were shown how to do white balance, and changing the white balance buy using different couloirs of hells and paper to create different effect , for example if we used a orange/red paper then it would go to a blue and cold effect. and if we used a blue jell/paper it would go to a lighter more warm colour. this is used for if your lighting changes, and you need to balance the colours, the can be also used for creating different effects in photos and videos, for example if you want to create a night effect you could white balance it to a red colure to make a blue/cold effect and viceverser to create a warm effect with a blue jell