Schneider's Circular True-Pol Polarizing filter for cameras which use polarizing elements in the beam-splitters of the viewing system, such as ARRI 435 and the Movie-Cam Compact.
Beam splitters send light in two directions: to an eye-piece and to a video tap. Light in a camera’s viewing system can become polarized, and when a standard (linear) polarizing filter is attached to the lens, the light becomes cross polarized. This hinders visibility and may create total black-out of the viewing image and/or the video tap.
Schneider Circular Polarizers feature a two layer design to prevent this blackout. The first layer is made up of the same polarizing material used in all True-Pol filters; the second layer is a 1/4- wave retarder plate which effectively prevents cross-polarization.
To ensure correct placement on the lens barrel Schneider clearly marks the outer surface on all Schneider Circular True-Pol Polarizing filters.
Having an extinction ratio of ER 374, the Schneider Circular True-Pol is 12- times more effective than other polarizing filters, and is unmatched in its ability to:
- Reduce glare and unwanted reflections
- Saturate colors
- Deepen blue skies
- Improve contrast
- Penetrate haze
The Circular True-Pol Polarizing filters enable you to achieve a level of optical performance previously unavailable to cinematographers.
The polarizing film in a Schneider Circular True-Pol filter is laminated between two pieces of Schneider’s crystal-clear, water-white optical glass. The filter is protected against edge-chipping and delamination by Schneider’s unique Edge Seal, which also effectively reduces edge-reflections and flare. The absolute clarity of the glass combined with advanced polarizing material make True-Pol filters particularly effective on demanding scenes, as when shooting through windshields in rigged-cars. On such shots, Directors of Photography have found that Schneider True-Pol filters capture more color saturation, wider tonal range and much more contrast inside the car. Like all filters in the Schneider line, Circular True-Pol filters are precision polished to the highest possible standards, meeting the most demanding specifications for optical flatness.
Ordinary Polarizer
Schneider Polarizer
Without Polarizing Filter 
With Polarizing Filter
For more information on polarizing capabilities, click here.
Schneider Circular True-Polarizer. 4x4
UPC Code: 605228046610
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