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Schneider CFG Circular True-POL 4.5 Inch unmounted

Schneider Optics
Abel Code: SC-68-1106522
Mfr. Code: 68-1106522
Estimated to Ship – 5-10 Business Days
Special Order Only
This is a special order item. You will be charged upon placing your order, which is non-cancelable and non-returnable.
This 4.5" unmounted circular polarizing filter prevents cross-polarization and associated color shift in cameras that feature polarizing elements in the beam-splitters of their viewing systems.
Key Highlights
  • 4.5" (round) circular polarizing filter
  • Unmounted
  • Prevents cross-polarization


The Schneider Circular True-Pol Polarizing Filter - 4.5", Unmounted is designed for cameras which use polarizing elements in the beam-splitters of the viewing system, such as ARRI 435 and the Movie-Cam Compact. This filter may also be required on certain high definition video cameras with complex optical blocks such as the Sony PMW-EX1, PMW-EX3, and PDW-700 which polarize the red an blue channels more than other cameras and therefore require a circular polarizer to prevent cross polarization and associated color shift in the image.

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.

What's in the Box

  • Filter Pouch
  • Schneider Circular True-Pol Polarizing Filter - 4.5", Unmounted


Key Highlights

  • 4.5" (round) circular polarizing filter
  • Unmounted
  • Prevents cross-polarization
  • For viewing sys. w/ pola beam splitters
  • For optical blocks w/ red/blue pola bias

Filter Specifics

Circular Size:
4.5" - Unmounted
Polarizer Type:
Circular Polarizer


5.7 in
1.3 in
6 in
0.3 lb
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