Ultra-thin filters adopted a special technology of double sided, multi-coating, lens employs high quality Japanese optical glass, which assures high transmittance and highly smooth surface. Meanwhile, the frame using high quality aluminum frame (with thinness of only 3 mm), it's the thinnest in the world so far. This ultra thin filter fit perfect even on super wide angle lenses to avoid vignetting and reflections.

• Ultra thin, only 3 mm: Minimize vignetting effect on wide angle lenses
• Multi coating on both sides of the filter
• High quality optical glass for high transmittance (>98,3%) and highly smooth surface with low reflection (0,5%)
• Protect the lens from dust, damage to the front element
• Hard waterproof and oil repellent coating on outer side
• Easy to clean

• NiSi Filter
• Filter Case