The NiSi Add on Kit for Swift True Color VND 1-5-Stop Kit is an effective way the expand the capabilities of the. You are able to add an ND16 (4-stop ND) filter to your system, now creating a total of 1-9 stops of filtering power.

The NiSi Add on Kit for Swift True Color VND 1-5-Stop Kit expands the neutral density range which offers the user increased control over exposure settings, which also reduced shutter speeds as well as wider apertures. Adding density allows a wider aperture to be used for finer control over depth of field, allowing increased bokeh to help isolate the subject of an image. It can also provide a longer shutter time to add image blur or enhance an image’s sense of motion.