B&W 77 mm Circular Polarizer 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.
B&W slim filters are for wide-angle
lenses and are 3mm thick. They do not have a front thread.
|
