B&W 46 mm Circular Polarizer 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.
Note! Circular polarizers are specifically designed for use with auto-focus SLR cameras (They will also work on manual systems without problems).
Specifications:
Type
Circular Polarizer
Size
46 mm
Grade
Not applicable
Filter Factor
Between 2.3 and 2.8 (approx. +1.3 stops)
Multi-Coated
No
Rotating
Yes
Effect
Removes reflections and increases color saturation without affecting the overall color balance
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