Feature: 1. CPL is a commonly used filter that can remove unnecessary reflection and most of the reflection from non‑metallic, non‑spherical surfaces. 2. Improve the clarity and expression of the image, increase the concentration of color, generally used in landscape photography. 3. Eliminate the reflected light of glass or water, make the whole picture more clear and transparent. 4. The filter can protect the lens from dust scratches, ensure the safety of the camera. 5. Can achieve the best reflection elimination effect through rotating the lens. 6. Fit for Canon/ Nikon/ Sony/Olympus/Fuji Lens with 37mm/ 1.5in interface, meet your different needs. 7. Multi‑layer nanometer coating technology, with waterproof, oil‑proof, anti‑fouling, scratch‑proof performance. Specification: Item Type: Polarizing FilterMaterial: Aluminum Alloy + Optical GlassInterface: 37mm/ 1.5inFitement: for Canon/ Nikon/ Sony/Olympus/Fuji Lens with 37mm/ 1.5in InterfaceInstruction:After installing CPL, rotating the lens (CPL has two lenses,the front one can be rotated), and then look at the LCD screen or DSLR viewfinder until you are satisfied with the picture before shooting. . Package List: 1 x CPL Filter1 x Storage Box Note: When using polarizing lens, because you need to rotate the filter, should not use the lens hood; Place the camera in shadow as much as possible.