Tiffen 3 x 4" 4 Red Hard-Edge Graduated Filter (Horizontal Orientation)

The Tiffen 3 x 4" 4 Red Hard-Edge Graduated Filter helps to specifically add a warm, bright red coloration to skies and other bright areas of an image while allowing a portion of the image to remain neutrally colored. The filter's coloring is densest at the edge and tapers to clear by the middle, with a hard-edged transition between the density and clear areas. The 4 color density provides less red coloration than the 5 density, but more than the 3 density filter.