Light rays which are reflected by any surface become polarised and polarising filters are used to select which light rays enter your camara lens.
• They allow you to remove unwanted reflections from non-metallic surfaces such as water, glass etc.
• They also saturate colors and increase contrast.
Reviewed by 1 customers
It is hard to find a circular polarizer for lenses this big without breaking the bank. I held off on getting one for too long. Using a lower quality lens with the CP instead of my nice one. This is not the most high quality filter, but it sure does get the job done.