- Reduces glare from light reflected off of specular surfaces
- When used in pairs, placing one piece over another and rotating one against the other, a "light valve" or variable neutral density filter is created.
- Check stress patterns in transparent glass and plastic
- Best results are achieved when polarizing film is used over the light source in conjunction with a polarizing filter over the camera lens
- Can be cut, drilled and formed to fit almost any type of lighting equipment
- Maximum usable width is 16.5 inches (420mm)