It's the 62mm Hrt Circular Polarizer Glass Filter from Hoya, a high-quality and durable accessory that every photographer should consider. This advanced filter utilizes a newly developed High-Rate Transparency film, a technology that allows more visible light to pass through the filter while maintaining the same level of polarized light filtration. This results in as much as 25% more light transmission through the polarizing film, providing photographers with approximately 1/3 stop more light than a standard circular polarizer. This innovative polarizing film is also utilized in the latest Hd Lcd TVs, demonstrating its cutting-edge technology and effectiveness. The glass of the Hoya Hrt filter is not just a polarizer it also boasts Uv absorbing properties, making it a versatile combination of Uv and circular polarizing filter. The most common application for this circular polarizer filter is to darken overly bright blue skies in outdoor photography. However, its versatility extends beyond that, as it can also reduce or eliminate reflections from non-metallic surfaces such as glass and water. By simply rotating the outer ring of the filter, photographers can easily control and observe the change of effect either through the filter itself or through the viewfinder when it's mounted on a camera. Hoya, the world's largest optical glass manufacturer, produces glass to spec for almost every camera and lens manufacturer, ensuring that this filter is compatible with a wide range of equipment. As the world's largest filter manufacturer, Hoya's reputation for producing effective, easy-to-use, and versatile photography equipment is well-established. This 62mm Hrt Circular Polarizer Glass Filter is no exception, offering photographers a tool that enhances image quality and brings their vision to life..