The Cavision 6.6 x 6.6" Soft-Edge Graduated Orange 0.3 Filter is compatible with filter holders that can accommodate 4mm-thick, 6.6 x 6.6" rectangular filters. This filter can be used to enhance an existing sunset within a scene or to simulate a sunset in order to enhance a hazy or colorless sky. The filter is densest at the edge and tapers to clear by the middle, with a soft-edged line of transition between the dense and clear areas. This filter has up to a 0.3 density and reduces light from entering a lens by up to one stop.