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B+W 49mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter

B&H # BWKCPXSP49 Mfr # 66-1066391
In Stock
Free Expedited Shipping
You Pay: $89.99
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
  • Nano Coating Simplifies Cleaning Process
  • Rugged Brass Filter Ring
  • High Quality Schott Glass

The B+W 49mm Kaesemann XS-Pro 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 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. The Nano coating associated with XS-Pro filters incorporates an additional 8th layer over the regular MRC and results in a better beading effect with water for greater cleaning efficiency.

B+W filters are constructed from high quality Schott glass for increased optical clarity and color fidelity. This filter features the XS-Pro Digital mount which is specifically designed for DSLR use with wide angle and zoom lenses. The filter ring is made from brass for durability as well as jamming prevention.

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.
Nano coating promotes a better beading effect with water for more efficient cleaning.
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 XS-Pro Circular Polarizer MRC Nano Filter
  • 10-Year Limited Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    B+W49mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter
     
    4.9

    (based on 7 reviews)

    Ratings Distribution

    • 5 Stars

       

      (6)

    • 4 Stars

       

      (1)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Pros

    • Easy to use (3)
    • Great picture quality (3)

    Cons

      Best Uses

      • Landscape/scenery (4)
        • Reviewer Profile:
        • Photo enthusiast (5)
        • Was this a gift?:
        • No (7)

      Reviewed by 7 customers

      Sort by

      Displaying reviews 1-7

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      5.0

      B&W Kaesemann XS-Pro Circular Polarizer

      By Bill

      from Ft. Wayne, IN

      About Me Photo Enthusiast

      Verified Buyer

      Pros

      • Great Picture Quality

      Cons

        Best Uses

        • Landscape/Scenery

        Comments about B+W 49mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter:

        I have several B&W filters and this one is certainly fitting with the quality I've come to expect from B&W. The filter works great with my Sony a6000.

        • Was this a gift?:
        • No

        Share this review

         
        5.0

        Great Product

        By Jake O.

        from San Diego, Ca

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Great Picture Quality

        Cons

          Best Uses

          • Landscape/Scenery
          • Wildlife Photos

          Comments about B+W 49mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter:

          I really love this filter. I've been using B&W filters for years and this one did not disappoint. There glass is a step above the rest in my book.

          • Was this a gift?:
          • No

          Share this review

          (2 of 3 customers found this review helpful)

           
          5.0

          Solid Filter

          By Cyclops

          from Raleigh, NC

          About Me Photo Enthusiast

          Pros

          • Durable
          • Easy to Use
          • Great Picture Quality
          • Lightweight

          Cons

            Best Uses

            • Landscape/Scenery

            Comments about B+W 49mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter:

            Got this for my Sony NEX 6 and using a 49mm filter with a 40.5-49mm step up adapter. It is robust and the rotation is smooth yet not too loose. This is really great. Picture quality is good. However I am yet to see the true potential of this filter. I will take a few more photos with it and probably will be able to see the real power of this filter

            • Was this a gift?:
            • No

            Share this review

             
            4.0

            A premium filter like Hoya's HD2 Circ Pl

            By bohdan

            from Toronto, ON Canada

            About Me Photo Enthusiast

            Verified Buyer

            Pros

              Cons

                Best Uses

                • Landscape/Scenery
                • Travel
                • Video
                • Wildlife Photos

                Comments about B+W 49mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter:

                I got this filter at the same time as an SMC Pentax DA 15mm lens, sight unseen. The fiter fit the lens well but I couldn't extend the lens' built in hood with this filter in place. This was no problem for me as I have other Circular Polarizers ,Hoya HD2, which allow using the built in lens hood. The B+W one fit and cleared OK on my other 49mm thread
                lenses without built in retractable lens hoods. This was the first time I have used this brand of filter and like its unique inner ring labels which are easier to spot this filter when it is in a filter wallet.

                • Was this a gift?:
                • No

                Share this review

                 
                5.0

                Great filter

                By drbrog

                from Chicago

                About Me Photo Enthusiast

                Verified Buyer

                Pros

                • Clear Optics
                • Easily Mounted
                • Strong Construction

                Cons

                  Best Uses

                    Comments about B+W 49mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter:

                    High quality construction, reputable dealer.

                    • Was this a gift?:
                    • No

                    Share this review

                     
                    5.0

                    Great folter for Pentax lims!

                    By Jus

                    from Alma-Ata, Kazakhstan

                    Verified Buyer

                    Pros

                    • Compact Design
                    • Easy To Use
                    • Improves Picture Quality

                    Cons

                      Best Uses

                      • Shooting Outdoors

                      Comments about B+W 49mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter:

                      I use it on Pentax "Limited Edition" series of lens, and i am totally satisfied with it!

                      • Was this a gift?:
                      • No

                      Share this review

                       
                      5.0

                      Solid filter

                      By Nuff

                      from Sydney, AU

                      Verified Buyer

                      Pros

                      • Compact Design
                      • Easy To Use
                      • Improves Picture Quality

                      Cons

                        Best Uses

                        • Shooting Indoors
                        • Shooting Outdoors

                        Comments about B+W 49mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter:

                        Just what a polarizer should be, solid build, thin and light. Great optical quality. It's on a pricy side, but it goes great with my collection of primes. I wouldn't leave home without it.

                        • Was this a gift?:
                        • No

                        Share this review

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