Can be used for Canon 16-35,Canon 24-70,Nikon 24-70,NiKon 70-200 and other 52mm,55mm,58mm,62mm,67mm,72mm,77mm,88mm lens,compatible with Lee Cokin Hitech Singh-Ray and other brand holder.
High Definition: The glass is fine annealing environmental protection optical glass H-K9L, it is specially used for optical lens.Double sides optical grinding and polishing to make sure the high defination.
Ultra Low color cast: NiSi GND adopts our exclusive research and development gradual coating, the light from ultra violet to near-infrared light can pass through evenly. NiSi glass GND is durable.
Anti-glaring: Double sides anti-reflection coating,can avoid high reflection of metal film such as aluminum or chromium film. Double sides water-proof, anti-glaring and reflection coating,can lower.
World's first Nano coating square optical gradient filter.