Details

Light rays which are reflected by any surface become polarised and
polarising filters are used to select which light rays enter your
camara lens. PL (Linear Polarising) and PL-CIR (Circular Polarising)
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 polarising filters do
not affect the overall color balance of a shot.





How to select the correct Polarising 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 Polarising) 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.

Features

Manufacturer SKU	B-77PL
UPC	024066012043

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