These are professional-grade camera lens filters, not available in Japan, from Simmod Lens, a Canadian company that refines cinema lenses. Aria Black Mist ⅛, ¼, ½ Circular Polarizer Both have a front diameter of 77MM, the most common size for converting old lenses into cinema lenses. Aria Black Mist provides an effect somewhere between the popular Black Pro Mist and Hollywood Black Magic. While maintaining sharpness, it reduces the harshness unique to digital and wrinkles on faces, and depending on the strength, it also enhances the halation effect, giving a film-like look. The polarizer is the most well-made one I've ever used. However, I've only used them once in a shoot since I bought them last spring. (They performed well with a RED Komodo and Leica R/Contax lenses at that time). So they are practically new. Not available in Japan. Only direct import. Don't miss this opportunity. #hollywood #filters #lens #arri #sony #red