This fully-laminated Polyvinyl Alcohol-Iodine filter has no color distortion and very good polarization efficiency (0.002% crossed transmission at 570 nm). The losses are low (38% transmission for unpolarized incident light). It comes in a width of 17" (43 cm) and you can order any length in multiples of 1 foot (30 cm) (full roll is 400 ft long).  The transmission axis is parallel to the width. It comes with protective peel-off film on both sides. It is 0.030 inch (0.75 mm) thick. Its thickness provides rigidity for free-standing applications. Great for building large POLARISCOPES to detect residual stress in glass and plastics! Also great in photography setups!

Sold by length in multiples of 1 ft (30.5 cm). For example, an order of 3 corresponds to 17 inches by 3 ft (43cm x 91.5cm).