Heliopan 67mm Circular Polarizer Multi-Coated (SH-PMC) Slim Glass Filter

Heliopan 67mm Circular Polarizing Multi-Coated (SH-PMC) Slim Glass filter - Light rays which are reflected become polarized. Polarizing filters are used to select which light rays enter your camera lens. They can remove unwanted reflections from non-metallic surfaces such as water or glass and also saturate colors providing better contrast. The effect can be seen through the viewfinder and changed by rotating the filter. The filter factor varies according to how the filter is rotated and its orientation to the sun. SH-PMC is Heliopan's 16 layer multi-coating for their filters. Heliopan Slim Circular Polarizers have no front threads Note! Circular polarizers are specifically designed for use with auto-focus SLR cameras (They will also work on manual systems without problems)