Kase 37mm CPL Circular Polarizer Camera Lens Filter,B270 Optical Glass,Double Side Nano 18-Layer Multi-Coated,Ultra Slim Frame for Canon Nikon Sony DSLR Camera Lens - 37mm CPLII

• 【B270 Optical Glass】Kase MRC CPL II filter features SCHOTT B270 optical glass made in Germany,resolving critically sharp and delivering excellent color neutrality, 99.9% polarization rate for superb anti-reflection capabilities. Ideal for color saturation and contrast. 【Ultra Slim Frame】Ultra slim frame can avoid vignetting on wide angle lenses,while maintaining rotation capabilities to adjust polarization levels. Extra tough 6063 aviation aluminum frame ensuring great durability and jamming prevention. 【Nano Multi-Coated】Double sided 18-layer HD nano multi-layer coating reduces reflection, reduce glare and improve saturation.Also making the cleaning of this filter even simpler and faster than ever before. 【CPL Filter Function】Circular CPL filters allow you to remove unwanted reflections from non-metallic surfaces such as water, glass et. They also enable colors to become more saturated and appear clearer with better contrast. This effect is often used to increase the contrast and saturation in blue skies and white clouds. 【Compatibility】This Filter is compatible with all 37mm lenses.Please verify your camera's lens thread size(usually marked somewhere on the lens barrel or printed underneath the lens cap) before ordering. The number is always preceded by a "ø" (diameter) symbol.