PC Series: Circular Polarizing Film. PC Series Circular Polarizing Film consists of a linear polarizer combined with a quarter wave retarder, left or right, to rotate the plane of the polarization 90°. As light passes through circular polarizing film it is converted to circularly polarized light. Compatible MidOpt Polarizing Filter:

self-adhesive polarising film 20 x 25cm A sheet of linearly polarised film as OPF0041 but with a transparent self adhesive backing so it can be stuck to glass or other surfaces. The self-adhesive backing reduces the polarisation efficiency slightly so the transmissivity figure for two sheets with crossed polarisation is 0.98%