Lindsey Optics - 6.6" x 6.6" Brilliant IR ND 1.8 Filter with Anti-Reflection Coating
6.6" x 6.6' x 0.135" (168mm x 168mm x 3.43mm) ND 1.8 Neutral Density Filter 6 Stop Light Reduction - 1.56%Transmission Broadband Multi-Layer Anti-Reflection coating (MC Coating) Fits professional Cine Matte Boxes