Lee Seven5 0.9 ND Hard Grad Filter,
The Lee Seven5 0.9 ND Hard Grad Filter, helps to darken specific areas of an
image, such as bright skies, while allowing for a normal, unaffected exposure
in the other regions of the image. The Filter, is densest at the edge and tapers
to clear by the middle, with a hard-edged line of transition between the
density and clear areas. Neutral density Filter,s do not affect the coloration
of the image and the 0.9 density affords a 3 stop reduction in light from
entering the lens.