The TRUE COLOR ND-VARIO 1-5stops is a 1 to 5 stop variable ND designed to have minimal, if no effect, on the colours in your image.
It aims to simply reduce the amount of light that passes through your camera’s lens without affecting the image quality in any other way.
As with most variable NDs (VNDs), the TRUE COLOR ND-VARIO 1-5stops screws directly into the front of your camera’s lens and is available in sizes ranging from 40.5mm through to 95mm.
Once screwed into the lens filter thread, the front element can be rotated to adjust the Neutral Density effect.
Several design features mark the NiSi TRUE COLOR ND-VARIO 1-5stops out against many of its rivals. Firstly is the visual impact; the rear threaded ring is silver, so whatever the conditions, you always know which is the threaded side and if youre still in doubt, there’s a textured edge to the ring that enables good purchase when attaching and removing the filter.
The front ring is black, as is the inner coating of the rear ring to help ensure that there is no reflection of light from the filter into the lens glass that could cause an issue with image quality.
The front ring features stop markings on edge, so you know exactly how many stops of exposure reduction you’re dialling in; a small black dot on the silver rear ring acts as the marker. The front of the ring features a fine texture, again enabling easy purchase when rotating; however, as standard, a rotation pin screwed into the edge makes it very easy to adjust and ideal if using the filter when filming.
The glass used by NiSi is the same as their lens range and features coatings designed to protect the optic in all conditions. A Nano coating ensures that it is weather resistant and easy to clean and also features anti-reflective properties to ensure the best possible light transmission through the glass.
As with all high-quality VNDs end, stops are in place to ensure that you don’t rotate the filter in either direction too far and cause the dreaded X-Effect.
On the front of the filter is a filter thread, so if you need to stack the filters, then you can; the 82mm filter that I’ve looked at features an 86mm front thread. In the box along with the filter is a filter cap; this fits snuggly over the filter and means that you can leave the filter on your camera as you move between locations.