The Tiffen 82mm Double Fog 1/4 Filter offers a unique way to recreate the appearance of natural fog or mist. By producing a gentle radiance around highlights and reducing overall contrast, this filter produces a softening effect. Compared to the standard Fog filter, the emphasis of this filter is to maintain sharpness and minimize flare, while still lowering contrast. With a density of 1/4, it creates a subtle fog effect without requiring any exposure compensation.
Tiffen implements ColorCore technology to craft their filters. This advanced process involves sandwiching the filter substrate between two layers of optical glass, grinding it meticulously to a precision tolerance of 1/10,000th of an inch, and securely mounting it onto metal rings.