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This is by far the most effective polarizer for motion picture and television cameras.
Having an extinction ratio of ER 374, the Schneider True-Pol is 12- times more effective than other polarizing filters, and is unmatched in its ability to:
True-Pol Polarizing filters enable you to achieve a level of optical performance previously unavailable to cinematographers.
The polarizing film in a Schneider True-Pol filter is laminated between two pieces of Schneiderﾒs crystal-clear, water-white optical glass. The filter is protected against edge-chipping and delamination by Schneiderﾒ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, True-Pol filters are precision polished to the highest possible standards, meeting the most demanding specifications for optical flatness.
For more information on polarizing capabilities, click here.
Schneider offers a 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ﾒ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.
To accommodate professional video lenses that require screw-on filters, Schneider manufactures the Top-Pol polarizing filter and the Kaesemann Polarizing filter. Both of these filters are popular for still photography as well as television production.
These screw-on polarizing filters are also preferred by many ENG television camera operators because they feature Schneider's brass mounting rings, which virtually eliminate jamming on the lens barrel. This is especially important when chasing a news story from a street into a building, or vice versa, where sudden temperature differences exist. This can cause aluminum filter rings to expand or contract at different rates than lens barrels, making it difficult to remove filters, but making it easy to miss important shots.
For screw-on polarizers, whether you choose the moderately priced Schneider Top-Pol or our exclusive Kaesemann filter is a matter of personal preference. Each gives you all the control polarizers are designed for, and are available in most popular sizes.
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