The Tiffen 6.6 x 6.6" Fog 1 filter simulates the effects of natural fog or mist by creating a soft glow around highlights and reducing the overall contrast of the scene. There may also be a softening effect due to how light interacts with the subject. Density 1 provides a greater fog effect than 1/2, but less than 2, and requires no exposure compensation. nnTiffen filters are manufactured using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding it flat to a tolerance of 1/10,000th of an inch. This filter measures 6.6 x 6.6" / 167.6 x 167.6 mm.nnn- Provides a fog effect with bright highlights and reduced overall contrast.n- Requires no exposure compensation to account for the filter's effect.nnnSpecificationsnn