HD HIGH-TRANSPARENT POLARIZING FILM Equipped with a UV-absorbing high transparency polarizing film, the HD Mk II CIR-PL has 25% better light transmission than standard polarizing film used in current photographic filters. This means that nearly 1/2 stop more light is entering the lens while yielding the same polarization effect, maintaining color balance while improving contrast and clarity. CONTROL REFLECTIONS Since light reflected from non-metallic surfaces polarizes, the HOYA HD Mk II CIR-PL filter makes it possible to control which light enters the lens, giving you more creative avenues to improve your image. One such avenue is the reduction of reflections, for example, on water surfaces. With the HOYA HD Mk II CIR-PL, you can greatly control and remove reflections, allowing you to show the natural colors and details of submerged objects. ENHANCE CONTRAST AND COLOR SATURATION This filter is not limited to surface light reflection control. Light waves reduce clarity and saturation of certain colors, making them appear hazed in the final photo. The HOYA HD Mk II CIR-PL also filters these light waves, greatly enhancing color contrast, and making skies and green foliage look more defined through deeper and more natural color tones. HD REINFORCED GLASS The HOYA HD Mk II CIR-PL comes with HOYA’s top quality HD glass, which is a special, chemically enhanced optical glass ? offering a four times better protection than conventional glass. HD HIGH-TRANSMITTANCE COATING The 16-layers anti-reflective multi-coating on both sides of the filter glass greatly reduces the chance of any reflections caused by the filter. As the coating comes with a water- and oil repellent feature while also being stain resistant, cleaning the filter is easy and stress free. HD LOW-PROFILE FRAME The glass of the HOYA Mk II Protector is mounted with a special high-pressure press technology to the frame, giving it additional stability, which contributes to the sturdiness of the filter. Using the HD Mk II CIR-PL is a great and easy way to achieve better results in your photos which are difficult and time-consuming to do in postproduction. The overall extremely high quality of the filter makes it a perfect fit for advanced and professionals who want to achieve the highest standard in their images.