The B+W 67mm XS-Pro Kaesemann High Transmission Circular Polarizer MRC-Nano Filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. The light from the sun naturally becomes partially polarized due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze.
A circular polarizer only differs from a linear polarizer in that it contains a quarter wave plane in addition to the linear polarizing filter. A polarizing filter arranges, and filters, this directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of this light. This results in a noticeable reduction of glare and reflections from non-metallic surfaces and an increase in the saturation of skies and foliage.
Kaesemann High Transmission Circular (HTC) polarizing filters are fitted with polarizing foils which provide 99.5% light transmission that are cemented between plano-parallel optical glass. The resulting sandwich is then precision-polished to achieve accurate plano-parallel surfaces. Finally, they are edge-sealed to protect the foil against humidity.
To prevent internal ghosting and reflections, each glass surface includes multiple layers of anti-reflection coating. This Multi-Resistant Coating (MRC) also offers further protection to the filter substrate and helps it to stay clean for longer than with uncoated filters. The Nano coating associated with XS-Pro filters provides an additional eighth layer over the MRC, resulting in an improved beading effect when in contact with water for greater cleaning efficiency.
It is constructed from Schott glass for increased optical clarity and color fidelity. Features a thin brass filter ring to minimize the potential for vignetting while enhancing durability and jamming prevention. To further reduce the possibility of vignetting when this filter is in use, the filter ring's outside diameter is slightly larger than the actual thread size. This may prevent the use of some lens manufacturer bayonet hoods.
Constructed from Schott
Strongest Effect When Used at a 90° Angle From the Sun
Feature 2 to 2.8x Filter Factor Reduces Exposure by 1 to 1.5 Stops
Clears up Haze in Distant Landscapes
Nano Coating Provides an Improved Beading Effect With Water
Multi Coated to Prevent Internal Ghosting and Reflections
Reduce Reflections and Glare by Filtering Out Light
Polarizing Filters Polarized Light Perpendicularly
Ideal For Use With Digital Cameras and Autofocus Lenses
Country of Manufacturer: Germany
Warranty: 1 Year
Filter Type: Circular Polarizer
Fitting Size: 67mm
Filter Factor: 2 - 2.8 (1 - 1.5 Stop)
Front Accessory Thread / Bayonet: 67 mm
To Fit Front Lens: 67mm
Filter Material: Schott glass
Coatings: MRC (Multi-Resistant Coating)
Effect: Eliminates reflections and haze and improves colour and tonal saturation
Dimensioins: 6.7 x 6.7 x 1cm
B+W 67mm XS-Pro Kaesemann HTC Circular Polarizer MRC-Nano Filter
Box Dimensions: 7.2 x 7.2 x 1cm
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