The Tiffen 28mm Circular Polarizer Filter is a general-use outdoor color filter that enhances color and contrast for your lens. Polarizers correct whitish glares that often wash out color in your images. They also remove glare from non-metallic surfaces like windows and water. This 28mm CP filter works like a polarizer to improve color saturation. It can be used on cameras with beam splitting. Color Correction The Tiffen 28mm Circular Polarizer Filter will produce deep, dramatically blue skies, fixing the common problem in which reflected light bes a whitish glare that washes out your image's color. This filter improves color saturation significantly. Cuts Glare and Reflection In addition to correcting glares on your images, this filter will remove glare from non-metallic surfaces, such as pictures of windows or water. The filter minimizes reflections in both black and white and color photography. Easy Adjustment A special attaching ring allows for easy adjustment with this filter. You can also rotate the filter to achieve your desired effect. More Options You can use the Tiffen Polarizer with the enhancing filter to get more dramatic effects. You can combine a Polarizer with a Red 25 to get dramatic black and white landscapes. Warm Polarizer A warm polarizer combines the benefits of the Linear Polarizer with the warming effect of the 812 Color Warming filter. This is ideal for portraits and scenics.