Lee 4x6"" Graduated Mahogany 1 Resin Filter - Soft Edge - Often it is necessary or desirable to balance the light intensity in one part of a scene with another. This is especially true in situations where you don't have total light control, as in bright contrasty landscapes. Sometimes it is also desireable to add colour to part of the photograph. For example, to add blue to only the sky. Lee colour graduated filters are colour toned in one half of the filter and are smoothly graduated into the clear portion. Certain Lee graduated filters are available with soft or hard transitions from dark to clear. The soft edge is recommended for wide angle lenses and the hard edge is recommended for normal and longer lenses. Lee graduated resin filters are 4 x 6"" (100 x 150mm) x 2mm thick. The 6"" length allows for adjustment of the filter within the holder.