Features • 【Variable ND Filter】KNF CONCEPT ND2-400 Filter reduce the light from 1 to 9 f-stops. • 【Material】Made by Completed Professional Optical Glasses, with double-side multilayer blue coating to help repel water. • 【Exposure Reduction】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.
Whats in the box : KNF Concept filter Variable ND 2-400 - 77mm x 1Pcs