Introducing the NiSi ND16 (4 Stop) Filter for the NiSi True Color VND Swift System that expands the NiSi True Color 1-5stop VND Variable Filter to a 5-9 stop VND when the bright conditions require more stops.

The NiSi Swift System works seamlessly with the NiSi True Color 1-5 stop VND Variable ND filter allowing the capability to be expanded by adding extra filters simply by pressing them on the front of the NiSi True Color 1-5 stop VND Variable ND filter.

Adding the NiSi ND16 (4 Stop) Filter for the NiSi True Color VND Swift System, the NiSi True Color 1-5 stop VND Variable ND filter is expanded to a 5-9 VND filter.

The new multi-ti coating provides an anti-reflected waterproofing and offers 4 stops of full spectrum neutrality. It also has precise stopping capabilities with true color transmittance.

Stacking multiple filters can introduce vignetting when shooting with wider focal lengths.  See the suggested focal lengths below to avoid vignetting.

Swift in Video Mode:
True Color 1-5 Stops VND + 1 Swift filter = No vignetting at 18mm (Full Frame)
True Color 1-5 Stops VND + 2 Swift filter = No vignetting at 20mm (Full Frame)

Swift in Photo Mode:
Vignetting can vary from lens to lens based on design, breathing and focus distance. These suggested focal lengths are a guide at infinity focus:
True Color 1-5 Stops VND + 1 Swift filter = No vignetting at 20mm (Full Frame)
True Color 1-5 Stops VND + 2 Swift filter = No vignetting at 28mm (Full Frame)