NiSi Filter Swift System Add On Kit 82mm The ND16 (4stop) filter and the Black Mist 1/4 filter can be used as "stand alone" filter or in combination, when used with NiSi Swift system adapter ring, or add on NiSi True Color VND 1-5 stops filter. Just push them on, simple as that!When using NiSi True Color VND 1-5 stop filter together with the NiSi Swift system ND16 (4 stop) filter, you get a 5-9 stop variable ND-filter.And then you can also add the NiSi Swift System Black Mist 1/4 in front of the above combination, or directly on the VND 1-5 stop filter. NiSi True Color VND 1-5 stop filter can be used on lenses down to 16mm focal length (Full Frame) without vinjetting. NiSi True Color VND 1-5 stop filter in combination with NiSi Swift system ND16 (4 stop) filter can be used on lenses down to 18mm focal length (Full Frame) without vinjetting NiSi True Color VND 1-5 stop filter in combination with NiSi Swift system ND16 (4 stop) filter and NiSi Swift System Black Mist 1/4, can be used on lenses down to 20mm focal length (Full Frame) without vinjetting NiSi Filter Swift System ND16 / 4 stops 4 Stops Full Spectrum Neutral Density Filter True Color Transmittance Nano coating, waterproof and antireflective coating. NEW Multi-Ti Coating which makes it more resitant against scratches and better anti-glare. NiSi Filter Swift System Black Mist 1/4 Creates a soft, pastel-like quality of light.Has an extra layer of black specks. Provides little loss of details across the image compared to traditional diffusion filters. Nano coating, waterproof and antireflective coating. NiSi Filter Swift System Adapter Ring This Swift Filter adapter should be used together with Swift Black Mist, Swift ND16, if you not use the NiSi True Color VND 1-5 stops filter.This kit also includes both a front protection and a nice little bag to store your filters in. Available in 67, 72, 77, 82 and 95mm size