Lee Filters is probably best known for its Stopper range of filters, including the Big Stopper, which has proved popular with photographers shooting daytime long exposure shots. One issue with the Stopper range, however, is that the filters impart a noticeable blue cast to images. Lee Filters’ solution is the ProGlass IRND range. These filters are more expensive to make, which means they cost more than the average ND filter.
Lee Filters makes the ProGlass IRND in a range ofrespectively. The Seven5 holder is now discontinued and the LEE100 system is the most popular option, so here I am focusing on the LEE100 ProGlass IRND.