The PL filter is an essential filter for landscape photography, allowing you to capture vivid photos by controlling light reflections from dust and moisture in the air, or reflections of water or glass. | PL stands for Polarized Light, allowing light to pass through the polarized membrane to control light reflections and enhance color contrast. The | PL filter allows you to control light reflected by dust and water droplets in the air, and vividly replicate the color of the transparent sky. The | PL filter removes light (turbidity) that is reflected from leaves and petals to replicate the original color of grass flowers. The | PL filter eliminates water reflections and creates a single piece of color and three-dimensional feel. .PL filter removes light reflected through the polarized membrane to clearly capture subjects across glass