Polarizer can be divided into PL and CPL; it is certainly filters of scenic photography, it can eliminate the reflection from non-metal surface such as water and glass windows. Using the filter. the colors shall become brighter and clearer and the contrast shall be strengthened. It also can be used for quantitative determination of polarized light, photographic equipment. Most important it is an important optical components in the field of polarized light equipment, etc.(/products-detail.asp?cpid=99)