From Manufacturer
The 58mm MCS Black Pro-Mist 1 Filter from Tiffen helps reduce highlight values while slightly lowering overall image contrast. Especially useful for smoothing out and softening facial wrinkles and other blemishes in motion picture and video applications, this Magnetic Control System filter can also be used for fashion and beauty still imaging applications. Unlike a traditional diffusion or soft focus filter, Pro-Mist filters provide little loss of detail across the image. Grade 1 filters provide more contrast and highlight reduction than Grade 1/2, but less than Grade 2 filters while still providing a soft, pastel-like quality of light.
This filter is part of Tiffen's Magnetic Control System (MCS) which allows filters to be swapped instantly rather than being slowly and tediously unscrewed and screwed in like conventional filters, saving valuable time when shooting in the moment. Each filter includes a magnetic mounting ring that allows it to quickly and securely attach to the front of a lens with no tools required. The separately available MCS step-up rings can adapt to the filter threads of almost any lens for added versatility. The filter set comes with a magnetic front cap to protect the filter and lens, plus a rear magnetic cap to protect the filter when not in use.