B+W 62mm Kaesemann Circular Polarizer Slim MRC Filter

B+W 62mm Kaesemann Circular Polarizer Slim MRC Filter

B+W 62mm Kaesemann Circular Polarizer Slim MRC Filter

B&H # BWKCPMCS62 MFR # 66-025831
No Longer Available

Product Highlights

  • Helps to Eliminate Reflections and Glare
  • Reduces Haze and Blue Cast in Landscapes
  • Greater Color and Tonal Saturation
  • High Efficiency Kaesemann Foils
  • MRC Multi-Resistant Coating
  • Slim-Line Mount for Wide Angle Lenses
  • Lightweight Aluminum Filter Ring
  • High Quality Schott Glass
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B+W 66-025831 overview

  • 1Description

The B+W 62mm Kaesemann Circular Polarizer MRC 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 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.

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

Kaesemann-type filters feature greater optical efficiency than regular polarizing foils and are more neutral in color. The polarizing 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.

The Multi-Resistant Coating (MRC) is both an anti-reflection coating as well as a protective surface. It helps to increase light transmission by reducing reflections, scattered light, and ghosting. Additionally, it offers greater protection to the filter substrate and stays cleaner for longer than uncoated filters.

B+W filters are constructed from high quality Schott glass for increased optical clarity and color fidelity. The slim filters are specifically designed for use with wide angle lenses and are only 0.2" / 5mm thick. They do not have front threads for stacking additional filters.

Note: This filter ring's outside diameter is slightly larger than the actual thread size, and because of this you may be unable to attach the lens manufacturer's bayonet-mounted lens hood to the lens while using this filter. This is dependent on your specific lens and how thick the front rim of the lens is; with thinner, low-profile lenses usually being affected more.

Helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.
Polarizing filters arrange, and filter, directionally polarized 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 colors.
Strongest effect when used at a 90° from the sun.
Circular polarizers are ideal for use with digital cameras and autofocus lenses where a linear polarizer will often disrupt auto exposure and focus features.
Kaesemann polarizing foils provide highly neutral coloring and higher image quality than conventional polarizing foils.
Multi-Resistant Coating offers both protection to the glass and helps to improve light transmission and image quality.
Constructed from high quality Schott glass for optical clarity.
Lightweight, slim aluminum filter ring measures 5mm thick to help reduce vignetting.
In the Box
B+W 62mm Kaesemann Circular Polarizer Slim MRC Filter
  • Slip-On Cap
  • 10-Year Limited Warranty
  • Table of Contents
    • 1Description

    B+W 66-025831 specs

    Type Circular polarizer
    Size 62 mm
    Filter Factor About 2.5 (1.3 stops)
    Multi-Coated Yes, MRC (Multi-Resistant Coating)
    Rotating Yes
    Effect Eliminates reflections and haze and improves color and tonal saturation
    Construction Schott glass
    Front Lens Cap Size 62 mm
    Packaging Info
    Box Dimensions (LxWxH) 3.7 x 3.7 x 0.8"

    B+W 66-025831 reviews

    62mm Kaesemann Circular Polarizer Slim MRC Filter is rated 4.5 out of 5 by 4.
    Rated 5 out of 5 by from Good landscape enhancer Optically perfect. Gives beautiful landscape colours, especially sky and water. Also helps to reduce contrast between bright sky and dark ground. Glass and coating resistant for scratching when cleaning. The cap is easy to loose (not attaching securely), I recommend to buy 2-3 extra for spare.
    Date published: 2008-08-03
    Rated 5 out of 5 by from Works great with wide-angle lens Really does a good job of eliminating reflections. This slim version doesnt cause vignetting. The multicoating keeps my landscape photos bright. I am very pleased with this purchase.
    Date published: 2009-09-21
    Rated 5 out of 5 by from No image quality lost with this filter The optics are such that, other than the exposure change of -1.5, you will see no degradation of the image. It operates as the Nikon version, but thinner. Reflection control is superb, and color fidelity intact.
    Date published: 2011-05-24
    Rated 3 out of 5 by from Not good for Sony ZA 16-80mm It causes vignetting.
    Date published: 2010-07-30
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