The Schneider 85 Series will produce natural colors when shooting with tungsten film outdoors.
What do you do when you must take some photos outdoors and all you have left is tungsten film? Using tungsten film in daylight will produce a bluish cast in the photograph. The 85 series of filters will "bring back", i.e. color balance the tones in your images. These yellow filters are used to correct differences in color temperature between the recording medium (film/video) and the light source.
It should be noted that an 85 filter produces slightly cooler results than an 85B (with tungsten film in daylight) whereas an 85B converts tungsten film to daylight. The 85C produces the coolest results - more than either the 85 or 85B. However, it is interesting to remember that an 85C is also useful as a creative warming filter with daylight film in daylight.
Whereas the 85 series is used for tungsten film under daylight conditions, use the 80 series of filters when using daylight film under tungsten lighting
Diamond cut from crystal-clear, water-white optical glass, Schneider filters are ground and polished to a precise flatness and plane-parallelism (exact parallel relationship between front and back filter surfaces)
It's due to this ultra-high consistency, that cinematographers can swap like filters mid-shoot with no discernible variation in color or effect
What's more, the unprecedented purity, color saturation and repeatability of Schneider filters virtually eliminate the need for lab color timing correction
Schneider filters stand up to the most rigorous demands Schneider's specially formulated hard anti-reflective scratching
This proprietary coating also reduces light loss to less than 1%, compared to untreated glass that has a light loss of 4%
Schneider filters feature a virtually jam-proof brass precision mounting
Filters are protected against delamination and edge-chipping which also reduces edge reflection and edge flare
Schneider 85 Specs
5x5" (125 x 125 x 4 mm thick)
1.8 (+2/3 stop)
Removes excessive blue from images and produces more natural colors
When pleasing color balance is desired when shooting with tungsten film outdoors
Decreases the color temperature from 5500-3400 degrees Kelvin