Tiffen filters are made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch. This filter measures 6.6 x 6.6" / 167.6 x 167.6mm.
Diffuser filter provides an ethereal quality to photographs, resulting in a dream-like atmosphere.
Soft image quality does not detract from the overall detail of the image.
Light entering the lens is diffused by small aberrations, creating a soft glow rather than the sharp, well-defined image when shooting without a filter.