The Tiffen Black Diffusion/FX 1/2 4 x 5.65" Filter diffuses strong light entering the lens and produces a halo effect. Whilst 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 obtained without a filter. The 1/2 density offers more softening than the 1/4, but less than the 1.

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 143.5mm.


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


Specifications