The Tiffen Black Diffusion/FX 1 4 x 5.65" filter diffuses strong light entering the lens and produces a halation effect. Although the resulting image appears softer and more ethereal, there is little loss of clarity or detail. This filter works by diffusing the light entering the lens with small aberrations; by distributing the light more evenly, a soft halo is created rather than the sharp, well-defined image when shooting without a filter. Density 1 offers more softening than 1/2, but less than 2.
Tiffen 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 4 x 5.65" / 101.6 x 143.5 mm.

- Diffusion filter gives photographs an ethereal quality, creating a dreamlike atmosphere. - The soft image quality does not compromise overall image detail. - Light entering the lens is diffused by small aberrations, creating a soft halo rather than a sharp, well-defined image when shooting without a filter.

Technical specifications