This is a Kenko Filter Zeta plus Protector 77mm. It was purchased several years ago and has been stored unused. There are no scratches or scuffs. The original box is damaged and torn. Also, the included lens cloth is missing. According to the manufacturer's description, it is as follows: Adopts ZR coating for ultra-low reflection. Ideal for the latest high-performance, high-quality lenses. With the adoption of the newly developed ZR coating, it achieves an unprecedented ultra-low reflection of 0.3% or less surface reflection. Its performance is comparable to the coatings applied to the highest-grade lenses from various manufacturers, making it recommended for those who are particular about quality. Slim frame design compatible with ultra-wide-angle lenses. While the glass thickness is a standard 2mm, a precisely machined aluminum frame is used to create a slim frame. You can use it with confidence even with ultra-wide-angle lenses.