K&F Concept 100mm ND64 Square Filter Ultra Slim HD 20 Layer Neutral Density 6 Stop Optical Glass
Brand: K&F Concept

ND filters are good for rivers, waterfalls, and other bodies of water, especially under bright light. The longer exposure times allows for smoother water movements, shallower depth of field, and blurred motion.

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 4x4" /100mm*100mm, so it Compatible with Cokin Z Series for DSLR Cameras Lens.