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B+W 49mm Kaesemann Circular Polarizer MRC Filter

B&H # BWKCPMC49 Mfr # 66-045612
In Stock
Free Expedited Shipping
You Pay: $78.17
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
  • Rugged Brass Filter Ring
  • High Quality Schott Glass

The B+W 49mm 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. They feature a brass filter ring for durability as well as jamming prevention.

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.
Brass filter ring helps to prevent jamming and provides additional strength.
Type Circular polarizer
Size 49 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 Filter Thread Size 49 mm
Front Lens Cap Size 49 mm
B+W 49mm Kaesemann Circular Polarizer MRC Filter
  • 10-Year Limited Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    B+W49mm Kaesemann Circular Polarizer MRC Filter
     
    4.0

    (based on 4 reviews)

    Ratings Distribution

    • 5 Stars

       

      (1)

    • 4 Stars

       

      (2)

    • 3 Stars

       

      (1)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    67%

    of respondents would recommend this to a friend.

    Pros

    • Firm mount (3)
    • Strong construction (3)

    Cons

      Best Uses

          • Was this a gift?:
          • No (3)

        Reviewed by 4 customers

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        Displaying reviews 1-4

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        4.0

        Solid Build Quality

        By Captain Awesome

        from Seattle, WA

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Consistent Effect
        • Easily Mounted
        • Firm Mount
        • Strong Construction

        Cons

        • No Indicator On Bezel

        Best Uses

          Comments about B+W 49mm Kaesemann Circular Polarizer MRC Filter:

          Works as advertised and the build quality is excellent; feels substantial and solid in the hand. Only complaint is that there's no indicator on the bezel of the filter indicating max effect.

          • Was this a gift?:
          • No

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          3.0

          Good results, disappointing QC

          By billca

          from Canada

          About Me Casual Photographer

          Pros

          • Firm Mount
          • Good Multi-coating
          • Strong Construction

          Cons

            Best Uses

            • Controlling reflections

            Comments about B+W 49mm Kaesemann Circular Polarizer MRC Filter:

            It does what all polarizing filters do which is to eliminate reflections from polarized light. Contrast and saturation can be increased. The color balance does change between minimum and maximum effect.

            Unfortunately B+W quality control was not great.

            The first copy I received had scratches on the glass (both sides) and looked to have a kind of oily residue on both sides of the filter.

            B&H provided the RMA and sent a second copy which did not have scratches on it (thankfully) but also had a strange residue on the glass.

            My attempts to clean it with ROR and a micro fiber cloth seemed to only move it around. I decided to live with it but will be wary of this in the future.

            I have owned Rodenstock polarizers (Schott glass) in the past and they did not exhibit such anomalies out of the box.

            • Was this a gift?:
            • No

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            (2 of 2 customers found this review helpful)

             
            5.0

            Solid and High Quality

            By tseg

            from Detroit, MI

            About Me Photo Enthusiast

            Verified Buyer

            Pros

            • Clear Optics
            • Consistent Effect
            • Easily Mounted
            • Firm Mount
            • Strong Construction

            Cons

              Best Uses

                Comments about B+W 49mm Kaesemann Circular Polarizer MRC Filter:

                This polarizer works great on assortment of Nex lenses as most are 49mm. Lens caps rub slightly against the filter as they are spun on and off but not objectionably so. If not noticed an vignetting down to the 24mm Zeiss. This thing is built like a tank.

                • Was this a gift?:
                • No

                Share this review

                (0 of 2 customers found this review helpful)

                 
                4.0

                Good Filter

                By ironshot

                from St. Louis MO

                Verified Buyer

                Pros

                • High Quality

                Cons

                • Expensive

                Best Uses

                  Comments about B+W 49mm Kaesemann Circular Polarizer MRC Filter:

                  Must have for landscape photography.

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