The Multistop filter is a Neutral Density effect (or fader) filter which allows the user to change the density without having to change filters. It is recognized as being one of the highest quality and most neutral fader filters available and avoids the polarizing effect seen in many of its competitors. By simply turning the front of the filter, you can go from one stop of light reduction to as many as six stops dependent on conditions. This one filter can therefore be as versatile as a full set of ND standard filters in the right conditions. You can also exercise greater control when trying to achieve motion blur when using slower shutter speeds.
The front rotating element of the Multistop is larger than the screw in element to allow even wide angle lenses to be able to use this filter without vignetting. The markings on the ring are intended as a guide only. Photographers should always test the filter before committing to their final shot. The filter is available in a range of sizes from 58mm to 105mm without the need for step rings. The Hitech Multistop is made using the highest quality Scott broadcast glass and set in an aluminum filter ring