For the full series see http://tale2tell.com/premiere-pro-tutorials/
In this tutorial, Andrew explains the level sliders in the 'Fast Colour Corrector' which help us to set up the contrast of a shot as well as change the brightness of a shot. This way of dealing with brightness and contrast is significantly better than using the 'Brightness & Contrast' effect which tends to crush your luminance ranges and so degrade your shot. Andrew explains both the input and output sliders and show what a difference they can make to a poorly lit shot
