ND64 square filter provides 6 f-stop reductions, With only 2.3mm thickness, No Color Cast, and is made with premium Germany Optics glass.
Double Thread,20-layer multi-resistant coating technology significantly reducing lens flare and ghosting while making the filter anti-scratch, water repellent, oil & dust resistant fit for the rigors of adventure photography.
Multi-Layer Coating with metallic alloy film on both sides of clear glass – this coating process produces a true neutral image, free from infrared contamination (flat curve).
Eliminates overly bright & washed-out images and enables longer exposures to capture the beauty of time and movement.
K&F Concept Neutral Density 4×4″ /100mm*100mm, so it Compatible with Cokin Z Series for DSLR Cameras Lens.