B013V79KDG Ikan Soft Graduated Neutral Density Lens Filter (NiSi), Black (Soft IR GND(4) 0.6 100×150)

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2mm H-K9L High Definition Optical Glass
Double Sided Anti-glare Coating
Waterproof and Oil Resistant Nano Coating
Ultra Low Color Cast
Can be used in any 2mm filter system