The Tiffen 4 x 5.65" 2 Straw Soft-Edge graduated filter helps to specifically add warm golden yellow colouration to skies and other bright areas of an image whilst allowing a portion of the image to retain a neutral colour. nnThe filter colouration is densest at the edge and fades to clear in the middle, with a smooth transition between the dense and clear areas. Colour density 2 offers less straw colouration than density 3, but more than the density 1 filter.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. It measures 4 x 5.65" / 101.6 x 143.5 mm.nnThe transition line of a horizontally oriented filter is parallel to the long side of the filter.nnAdds golden yellow colouration to certain areas of the image.nnThe graduated filter design maintains a portion of the image neutral, giving a more realistic appearance whilst allowing the sky or other bright areas to take on the colour of the density.