Enhance Color & Contrast CPL filter can enhance the color and contrast, and remove non-metallic reflections such as water, and glass to show the true color, especially used in white cloud and blue sky photography. Waterproof 18 Multi-Layer Coated 18 multi-layer coating reduces reflection, and glare and improves color saturation and contrast. Imported AGC Glass Avoids Glares Made by Japanese imported AGC glass, no effect on the image color, restores the natural color. Ultra-Slim Frame Avoid Vignetting Only 5.3mm thickness frame, there is no vignetting even on wide-angle and telephoto lenses, and the CNC-non slip frame helps install and remove the filter easily. NOTE This filter is compatible with all 82mm lenses. Please verify your camera's lens thread size before ordering. This number is always preceded by a "ø" (diameter) symbol. New and old packages are sent randomly.