Tiffen 4x5.650" Clear/Soft Edge Horizontal ND 0.9

Graduated neutral density filter that darkens skies and bright areas. The filter is densest at the edge and tapers to clear by the middle, with a soft-edged line of transition between the density and clear areas. 0.9 density provides a 3 stop reduction in light. Constructed from Water White glass using ColorCore technology, laminated between 2 pieces of optical glass.