The HOYA HD nano Mk II CIR-PL is the best polarizer you can get for your lens. Equipped with a High Transparency HD Polarizing Film, manufactured with a high-pressure press technology for maximum sturdiness, and perfected with the unmatchable ultra-hard nano coating, the HD nano Mk II CIR-PL will provide you with an unbeatable longevity and an image quality worthy for the big screen. Experience what it means to use a titan!

The most vulnerable spot of filters are their coatings. A coating is not permanent. Daily usage and wiping when cleaning the filter wear the coating off. The filter protects from potential physical damage – but the coating should also have extraordinary strength in order to not wear off during routine maintenance. If the coating loses its effectiveness, the image quality suffers.

But not with the HD nano Mk II's ultra-hard nano coating. This newly developed coating is applied onto the filter's glass surface more firmly and tightly on the nano level than ever before. Due to this, the particles are layered on the glass surface with extremely high density that creates a hard to come off and smooth coating.

With 16 layers applied to both sides of the filter glass, the coating is a solid 200% harder than that of common CIR-PL filters, making it the hardest and most scratch & stain resistant coating among all manufacturers.

Specs:

• Type of filter: Circular Polarizing
• Diameter: 52mm