Hoya HD Nano Mk II CIR-PL Filter 72mm: The Hoya HD Nano Mk II CIR-PL filter is a premium circular polarizing filter designed to enhance image quality by reducing reflections and increasing color saturation. This filter is constructed from high-quality optical glass with an advanced HD Nano coating. This coating provides exceptional scratch resistance and facilitates cleaning. The ultra-thin filter mount prevents vignetting, even with wide-angle lenses. The Hoya HD Nano Mk II CIR-PL filter is ideal for landscape and architectural photography, as it eliminates unwanted reflections on non-metallic surfaces, resulting in more intense and contrasty colors. Robust, durable, and easy to use, this filter is a valuable addition to any camera kit.