The Cavision 3x3" Graduated Red 0.3 Glass Filter can make a run-of-the-mill sunrise or sunset into a memorable image. This unique filter adds spectacular color to one half the photo while leaving the other half untouched. If you like shooting landscapes in the morning or at dusk, make them into breathtaking studies. Not only will it add a red color but it does so with a subtle and extremely gradual transition between the two halves of the filter. This filter can also be used to create a fantasy image by adding a "departure from reality" quality to your image.