The Tiffen 4 x 5.65" ND 0.9 Graduated Filter (vertical orientation) is a graduated neutral density filter that helps to specifically darken skies and other bright areas of the image.

The filter is denser at the edge and fades to clear in the middle, with a soft transition line between the dense and clear areas. Neutral density filters do not affect the colouration of the image and the 0.9 density provides a 3-stop reduction of light entering the lens.

This filter is constructed from Water White glass and is made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding it to a tolerance of 1/10,000th of an inch. This filter measures 4 x 5.65" / 101.6 x 143.5mm.

-ND 0.9 graduated filter with soft edge to darken skies and other bright areas of the image.
-Provides selective light reduction of 3 stops.
-Neutral density filters do not affect the overall colouration of the image.
-Water White optical glass for excellent clarity.