Neewer 67MM (ND2 ND4 ND8 ND16) Filter Set

The included filters are made of HD optics glass that have good level of transmittance

Aluminum alloy frame sealing ring makes it have better tightness, which can avoid fall or loose

Neutral Density ND Filter :

ND filters reduce the amount of light reaching the film without affecting the color (ND2 Filter reduces the exposure by 1- stop; ND4 reduces the exposure by 2-stops; ND8 reduces the exposure by 3-stops; ND16 Filter reduces the exposure by 4-stops)

ND filters allow you to have more control of the camera’s aperture, exposure time and sensor sensitivity settings, which can produce a shallower depth of field, or achieve a sharper photo

ND Filters also help improve video quality by introducing a natural motion blur for smoother motion in video in bright daylight situations