Lee Low Contrast filters work by spreading light from the highlights to the shadowed and darker areas, leaving the bright areas of the image bright. The dark areas become lighter, enabling you to see more detail in the shadow areas. As there is no F-stop compensation, you will not overexpose any portion of the image. This filter also creates a very slight flare or halation around hot spots and individual light sources. This feature is a useful effect. The more light there is for the filter to work with, the greater the effect. This filter is very popular with people who shoot video but who want to achieve more of a film look to their images. Lee Low Contrast filters are available in grades from 1/4 through 1 1/2, with the 1 1/2 having the heaviest effect.
Lee resin filters are available in 4 x 4" (100 x 100mm) x 2mm thick.