Tiffen Black Pro-Mist 1/8 — Lightest grade of diffusion filter for subtle skin smoothing without sacrificing sharpness.
Technical Details
The optical density of the Black Pro-Mist 1 is 0.1, reducing light transmission to approximately 80%. The filter is made of a clear glass substrate with embedded black particles of varying sizes (5-50 micrometers in diameter). The particle distribution is approximately 200-300 particles per square millimeter. The filter is available in standard sizes from 52mm to 138mm, as well as 4x4" and 4x5.65" matte box inserts. The multi-layer coating reduces reflections to below 0.5% per surface.
History & Development
Tiffen developed the Pro-Mist series in the early 1980s as an alternative to classic Fog filters. The Black Pro-Mist was introduced in 1987, aiming to eliminate the drawbacks of white diffusion particles, which produced unwanted flares in strong backlight. The black particles absorbed distracting stray light and offered more precise control over the diffusion effect. An improved version with more uniform particle distribution has been produced since 2010.
Practical Use in Film
Roger Deakins used Black Pro-Mist 1/8 and 1/4 throughout "Blade Runner 2049" (2017) for the characteristic look of the interior scenes. The filter reduces digital sharpness on Alexa and RED cameras and creates a more organic skin tone. It is typically used for portraits with strong key light, where the filter softens harsh shadows without washing out the eyes. With LED panels, it enhances diffusion by a factor of 1.8 compared to unfiltered light.
Comparison & Alternatives
Compared to the classic Pro-Mist without black particles, the Black Pro-Mist produces 30% less base halation and retains deeper blacks. The Schneider Hollywood Black Magic offers similar characteristics with slightly stronger contrast reduction. Digital alternatives like DaVinci Resolve's "Film Glow" do not achieve the selective light absorption of true glass filters. With extreme wide-angle lenses under 16mm, uneven diffusion effects can occur, which is why Schneider filters with more uniform coatings are then preferred.