Remove unwanted reflections from nonmetallic surfaces such as water or glass with the Sigma AFL-950 46mm polarizing filter. Polarizing filters are used to determine which light rays enter your camera lens. By rotating the filter--viewable through the viewfinder--and changing its orientation to the sun, you can achieve a variety of different light effects, including saturating the colors, removing haze from outdoor shots, or removing reflections, all without affecting the overall color balance. Note: Circular polarizer?s are specifically designed for use with auto-focus SLR cameras, but they'll also work on manual systems and video cameras without problems.
Technical Specifications
Type: Circular polarizer
Size: 46mm
Filter factor: Between 2.3 and 2.8 (approximately +1.3 stops)
Multi-coated: Not applicable
Rotating: Yes
Effect: Removes reflections and increases color saturation without affecting overall color balance