The COKIN Polarizer Filters give ideal saturation to your colours, improve contrast and give the sky a characteristic dark blue tint. These are also high-quality neutral density filters, absorbing up to two stops. The COKIN Polarizer Filter is surrounded by a notched ring, and fits into the first groove of the COKIN Filter holder; in this way it can rotate freely.
Depending on its position, it reduces or eliminates the light reflected from water, glass, painted or lacquered surfaces, stone, and any other reflecting surface except metallic surfaces and mirrors . By checking your framing through the viewfinder, and by turning the filter, you will better understand the merits of a photograph free from unwanted reflections. The sky becomes bluer, the backgrounds clearer, shop windows more transparent and objects stand out even more from their surroundings.