Light rays which are reflected by any surface
become polarized and polarizing filters are used to select which light rays enter your
camera lens. PL (Linear Polarizing) and PL-CIR (Circular Polarizing) filters have the same
effect, but it is important that you choose the correct version for your camera. They
allow you to remove unwanted reflections from non-metallic surfaces such as water, glass
etc. They also enable colors to become more saturated and appear clearer, with better
contrast. This effect is often used to increase the contrast and saturation in blue skies
and white clouds. HOYA's polarizing filters do not affect the overall color balance of a
shot.
How to select the correct
Polarizing filter:
Many of today's cameras use semi-silvered mirrors or prisms to split the
light entering the viewfinder in order to calculate exposure and focusing
distance. PL (Linear Polarizing) filters can sometimes interact with these
items to give unpredictable exposure or focusing. So we recommend that you
choose a PL-CIR filter unless you have a manual focus camera which has no
beam splitter.
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