Polarizing Filters Polarizers provide color and contrast enhancement. Reflected light often shows up as whitish glare that washes out color in an image. A Polarizer corrects this problem producing deep, dramatically blue skies. It also removes glare from non-metallic surfaces, such as windows and water. Color saturation in general, especially outdoors, can be improved significantly. Polarizer/Circular Polarizer Essential general-use outdoor color filter Produces deeper skies and minimizes reflections in black and white and color photography Tiffen precision-made filters are so superior, we back them with a 10-year warranty against manufacturing defects. Unlike ordinary batch-dyed glass filters in which color can be uneven, our unique lamination process allows complete control over color and density for maximum consistency.