The Canon PL C B Filter Circular Polarizer is designed to minimize reflections from non - metallic surfaces such as water and glass, while also enhancing color saturation for more vibrant skies and foliage. This filter is particularly useful for photographers looking to achieve clearer images in hazy conditions. It fits lenses with a 58 mm filter thread and supports full use of a camera's autofocus and auto - exposure functions. The filter is made from high - quality glass and features a durable aluminum ring, ensuring longevity and reliability in various shooting environments.