Feature: 1. The durable lens filter can protect the lens from dust scratches. 2. Multi‑layer nanometer coating process, the lens has waterproof, oil‑proof, anti‑fouling and scratch‑proof performance. 3. CPL is a commonly used filter, which eliminates unnecessary reflections, can eliminate most of the reflections on non‑metal non‑spherical surfaces, improve the clarity and expressiveness of the image, and increase the color density. 4. It is generally used for landscape photography, and the sky is more Blue, eliminates the reflected light from the glass or water surface, makes the whole picture more transparent and more transparent. 5. Adjust the rotating lens to achieve the best anti‑reflective effect. Specification: Item Type: CPL Filter Material: Aluminium alloy + optical glass Color: As Pictures Shown Weight: Approx. 138g/4.9ozInterface: 105mm/4.1in Applicable model: 105mm mount lens How to use:After installing CPL, rotating the lens (CPL has two lenses that can be rotated at the front) and then look at the LCD screen or SLR viewfinder until you are satisfied with the results before shooting . Package List: 1 x CPL Filter 1 x Storage Case Note: When using polarizing lens, because rotating the filter, should not use the lens hood. Place the camera in shadow as much as possible.