This filter 10 stop fixed neutral density filter exposure correction, 【not variable】.
Reduce the amount of light by 10 stops, long-time exposure tool helps to achieve slow shutter speeds to be used on record objects movement such as waterfalls, presenting a silky smooth effect of flowing water.
Hydrophobic, scratch-resistant, anti-reflective green coating, effectively prevents oil, fingerprint, scratch, protects the valued camera lens.