LEE Filters – Super Stopper, 100×100 Glass, 15 Stop
The LEE Super Stopper is a neutral density filter made from optical glass that reduces the amount of light entering the lens to enable long shutter speeds. It is available for the 100mm, SW150 and Seven5 systems. It is packaged in a protective tin case and carries a lifetime warranty. LEE filters states that “the filter has a slight color cast” that it claims is easy to remove in post-production. The Lee Super Stopper reduces the light by a massive 15 stops with a filter factor of 3200, and has a density of 4.5, meaning a regular two-second exposure would calculate to an exposure of 17 hours and 4 minutes.