[Premium Materials]- 12-Layer multi-resistant Nano Coating significantly reduces lens flare and ghosting while making the filter Anti-Scratch, Reduce Reflection, Water Repellent, Oil & Dust Resistant. Additionally, the thickness of the filter's glass is just 0.06" and the frame is only 0.17", which effectively avoids vignetting. The hardness of the glass is up to 9 HD, thus providing additional protection in case of drops or situations where scratching could occur | [Japanese High-Rate Transparency(HRT) Polarizing Film]- The polarization ratio of the CPL camera lens polarizing filter is up to 99.8% or above for it is constructed from Japanese optical glass with fine grinding and polishing and HRT polarizing film, effectively reducing reflections and improving the image qualities | [Tips]- This lens protector circular polarizer is compatible with most 52mm camera lenses. Please verify your camera's lens thread size. On all lenses from Canon, Nikon, Olympus, Samsung, Fuji, and other manufacturers there is a printed by a "ø" (diameter) symbol that determines the filter size | [Double Thread Design]- This circular PL lens filter adopts a double-sided design to mount & stack multiple filters, lens cap, or other accessories for other optical effects like warming, ultraviolet, macro photography, etc | [Moisture-Proof Storage Case]- Comes with a delicate and portable filter case. Each circular polarizer CPL glass filter can be fixed firmly in the case via the custom-fitted sponge cushion. Moreover, the moistureproof interleaving paper and the sponge cushion at the bottom effectively protect the filter from moisture and impact