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B+W 105mm Kaesemann Circular Polarizer Filter has been discontinued, here are some related products you might like:

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B+W 105mm Kaesemann Circular Polarizer Filter

Product #24884 | SKU 66-1071057 | B+W
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This product is no longer available what does this mean?

Overview

Helps to Eliminate Reflections and Glare, Rugged Brass Filter Ring

Description

The B+W 105mm Kaesemann Circular Polariser Filter helps to reduce reflections and glare by filtering out light that has become polarised due to reflection from a non-metallic surface. The light from the sun naturally becomes partially polarised due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze. A polarising filter arranges, and filters, this directionally polarised 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.

A circular polariser only differs from a linear polariser in that it contains a quarter wave plane in addition to the linear polarising filter. The addition of this quarter wave plane is to circularly polarise the linearly polarised light for the use of auto focus and exposure functions. Due to how the light is broken down and filtered with a linear polariser, auto focus and exposure accuracy become skewed during use. When the light becomes circularly polarised, it permits the use of these functions.

Kaesemann-type filters feature greater optical efficiency than regular polarising foils and are more neutral in colour. The polarising foils are cemented between plano-parallel optical glass layers, which are then precision-polished to achieve the most accurate plano-parallel surface. This edge sealing protects the filter layers from humidity and are ideal for use with high-speed telephoto and apochromatic lenses.

B+W filters are constructed from high quality Schott glass for increased optical clarity and colour fidelity. They feature a brass filter ring for durability as well as jamming prevention.

Key Features

  • Helps to reduce reflections and glare by filtering out light that has become polarised due to reflection from a non-metallic surface.
  • Polarising filters arrange, and filter, directionally polarised light perpendicularly to the reflected light, allowing for the absorption of much of the light.
  • Clears up haze in distant landscapes and provides more saturated, vivid colours.
  • Strongest effect when used at a 90° from the sun.
  • Circular polarisers are ideal for use with digital cameras and autofocus lenses where a linear polariser will often disrupt auto exposure and focus features.
  • Kaesemann polarising foils provide highly neutral colouring and higher image quality than conventional polarising foils.
  • Constructed from high quality Schott glass for optical clarity.
  • Brass filter ring helps to prevent jamming and provides additional strength.

Specifications

Type
Circular polariser
Size
105 mm
Filter Factor
About 2.5 (1.3 stops)
Rotating
Yes
Effect
Eliminates reflections and haze and improves colour and tonal saturation
Construction
Schott glass
Front Filter Thread Size
105 mm
Front Lens Cap Size
105 mm

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Details

  • Product: B+W 105mm Kaesemann Circular Polarizer Filter
  • Manufacturer: B+W
  • Model: 66-1071057
  • SKU: 66-1071057
  • RM Product #: 24884
  • Filter Diameter: 105mm

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