NiSi Cinema V-ND Variable Viewing Filter, 1 to 6-StopsNiSi NIC VF VND Cinema V ND Variable Viewing Filter, 1 to 6 Stops The NiSi Cinema V ND Variable Viewing Filter (1 to 6 Stops) is a variable viewing filter from 1 to 6 stops. When youre setting or focusing your lights its helpful to be able to stand in the spot where you want the light to hit, and look up directly into it as its being focused. NiSi have made an up to date version of the tool that uses a variable ND filter. Technical Specifications