Tiffen 4 x 5.65" Ultra Contrast 1/4 Filter

The 4 x 5.65" Ultra Contrast 1/4 Filter from Tiffen helps to open your shadows by using the ambient light surrounding the image area as well as the light in the actual image itself. It lowers contrast uniformly throughout, with little or no loss of sharpness within the scene, even where there are varying degrees of brightness.