The Tiffen 5.65 x 5.65" Soft Edge ND 1.2 Graduated filter is a graduated neutral density filter that helps to specifically darken skies and other bright areas of the image. The filter is densest at the edge and fades to transparent in the middle, with a soft transition line between the dense and transparent areas. Neutral density filters do not affect image colouration and the 1.2 density provides a 4-stop reduction of light entering the lens.nnThis filter is manufactured using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding it flat to a tolerance of 1/10,000th of an inch. This filter measures 5.65 x 5.65" / 143.5 x 143.5 mm.nnn- Graduated ND 1.2 filter with soft edge for darkening skies and other bright areas of the image.n- Provides a 4-stop reduction of light in selected areas.n- Neutral density filters do not affect the overall colouration of the image.nnnSpecificationn