| 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.
Filter factor is between 2.3 and 2.8 (approx. +1.3 stops). |