HOYA HD MkII Neutral density IRND filters are the best hi-end ND filters concentrating know-how from the brand in manufacturing premium filters. The coloring process, the exclusive multi-coating combined with a professional grade mineral glass from HOYA ensure perfect image control for both resolution and colors rendering, withour color cast even in the infrared spectrum. The water & oil repellent properties make the filter easier to clean, while its new knurled slim aluminium ring limit vignetting and ease operation. Front thread allow to stcack filters on each others. HOYA HD MkII IRND filters are available in IRND8 3 f-stops density, IRND64 6 f-stops and IRND1000 for 10 f-stops density, all available in diameters from ø49mm to ø82mm. A special 3x filters kit including all variations with a wallet complete the range.