Overexposure is your worst enemy whenever you shoot under intense sunlight. However, the Okko Pro Circular Polarizer Filter 37mm allows you to suppress glare to capture clear and colourful images without unwanted reflections. Made from durable Japanese AGC optical glass, this adjustable CPL filter will reduce the haze or glare that can hinder the lens' performance. The filter's aluminium alloy frame gives it a robust look. Meanwhile, its ultra-thin frame minimizes vignetting when capturing wider angles. The easy to clean Okko Pro Circular Polarizer Filter 37mm will fit perfectly with your standard lens cap. Product Features in Detail Japanese AGC optical glass The Japanese AGC optical glass with Nano Coating reduces the bright natural lighting to give you images with better contrast and colour saturation. Ultra-thin frame The lens' thin frame reduces vignetting to give you extra width on landscape shots. Adjustable polarisation Moving the lens filter's front ring adjusts its polarisation effect. You can dial down when the skies darken or dial it up during the most intense hours of sunlight. You'll get deeper blue tones that vastly improve the skies on landscape images.