Nuances C-PL are manufactured from mineral high-resolution glass Schott B270i and absorb 1 f-stop of light. In sunny weather – and even more during morning or evening hours – if you maintain a right angle (90°) between the shooting axis and the position of the sun, a polarising filter will darken the blue of the sky, highlighting the clouds. Polarising filters significantly improve the saturation of colours, resulting in greener greens, richer reds, and more brilliant yellows. You will be surprised to see how certain colours, dull to the naked eye, become vibrant and dazzling with this filter. In all kinds of weather, polarising filters reduce, eliminate, and deepen reflections on all non-metallic surfaces, such as water or windows. It enhances vegetation, transforms bodies of water, and opens vistas. Note that with wide-angle lenses of 24mm and shorter (in 35mm photography terms), the side of the image that is farthest from the sun will be darker than the other. This is an inevitable optical phenomenon, independent of the polarising filter.