Traditional Culture Encyclopedia - Photography major - What is the role of adding nd to camera shooting?

What is the role of adding nd to camera shooting?

ND can't suppress the strong light in the picture. ND filter reduces the brightness of the picture as a whole, so it takes longer exposure time to get the same brightness picture. After a long exposure, you can fuse the traces of movement to shoot a silky water surface, or pull out a long bright headlight.