B+W 77mm F-Pro Kaesemann High Transmission Circular Polarizer MRC Filter

B+W 77mm F-Pro Kaesemann High Transmission Circular Polarizer MRC Filter

B+W 77mm F-Pro Kaesemann High Transmission Circular Polarizer MRC Filter

B&H # BWKCPMCH77 MFR # 66-1081902
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B+W 77mm F-Pro Kaesemann High Transmission Circular Polarizer MRC Filter

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Product Highlights

  • Circular Polarizer Filter
  • 99.5% Transmission, Kaesemann Foils
  • 2 to 2.8x Filter Factor, +1 to 1.5 Stops
  • Helps to Eliminate Reflections and Glare
  • Reduces Haze in Landscapes
  • Greater Color and Tonal Saturation
  • MRC Multi-Resistant Coating
  • Schott Glass Construction
  • F-Pro Brass Filter Ring
  • 77mm Front Filter Threads
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B+W F-Pro overview

  • 1Description

The B+W 77mm F-Pro Kaesemann High Transmission 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 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.

B+W filters are constructed from Schott glass for increased optical clarity and color fidelity. This filter features an F-Pro 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° angle from the sun.
Circular polarizers are useful in combination with digital cameras and auto-focus lenses where a linear polarizer will often disrupt auto exposure and focus features.
Multi-coated to prevent internal ghosting and reflections while providing over 99.5% light transmission.
2 to 2.8x filter factor reduces exposure by 1 to 1.5 stops.
Constructed from Schott glass for optical clarity.
F-Pro brass filter ring helps to prevent jamming and provides additional strength.
Plastic case for storage and transport.
In the Box
B+W 77mm F-Pro Kaesemann High Transmission Circular Polarizer MRC Filter
  • Filter Case
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    B+W F-Pro specs

    Filter Type Circular Polarizer
    Filter Factor 2 - 2.8 (1 - 1.5 Stop)
    Shape Circle
    Circular Size 77 mm
    Front Accessory Thread / Bayonet 77 mm
    Filter Material Glass
    Coatings Multi-Coating
    Packaging Infoetstarfdwxysyvsqursqzrsbyvaaqytydftwf
    Package Weight 0.2 lb
    Box Dimensions (LxWxH) 3.7 x 3.7 x 0.8"

    B+W F-Pro reviews

    77mm F-Pro Kaesemann High Transmission Circular Polarizer MRC Filter is rated 4.8 out of 5 by 33.
    Rated 5 out of 5 by from An exceptional value I use both the F-Pro and SX-Pro HTC polarizers. Both have a solid brass build and are exceptional for cutting glare and color saturation. I stick with B+W, as I will not put an inferior filter in front of my pro-type L lenses. The ring mount on the SX-Pro is a bit thinner to reduce a vignette, but still has enough front threads to accept standard lens cap or additional filter ring. However, I still like this wider F-Pro model because I can reach in and rotate the filter with my lens hood attached and not smudge the glass. (And I've dropped many hoods over cliffs while adjusting filters.)
    Date published: 2016-09-28
    Rated 4 out of 5 by from Quality Filter Quality Filter with little image quality loss. Improves color saturation and blue sky/cloud pics. Can get uneaven polarization with a wider angle lens in a uniform blue sky, thats a fault with all polarizing filters. Overall a great filter to get effects not possible with post processing.
    Date published: 2015-11-25
    Rated 5 out of 5 by from Totally Satisfied! Although knowing from many great lovers of the art about the amazing quality of these filters, it wasn't until the last few summer months of intensive DSLR video shooting (most of the landmarks and interesting places in Southern and Northern California) that the necessity became very apparent. The magnitude of the positive impact these filters have on my footage is worth every penny. Don't procrastinate like I did, just buy them; you'l be a very happy camper!
    Date published: 2015-08-12
    Rated 5 out of 5 by from best filters available These filters are German optics set in brass not plastic. You can tell as soon as you take it out of the box its not a cheap piece of glass.This was the fourth one I've ordered.Makes incredible blue skies and takes all the glare and reflections away.Even indoors it lets plenty of light through. I never take mine off.Love it !
    Date published: 2016-01-09
    Rated 5 out of 5 by from Awesome clarity with outstanding build quality This filter (77mm) works great for foliage, sky and water or whenever you want to get rid of reflections. It is very well built and has a silky smooth rotation.
    Date published: 2016-09-05
    Rated 5 out of 5 by from Well worth it Maximum polarization with minimum light loss
    Date published: 2015-12-27
    Rated 5 out of 5 by from Great filter Have bought other B+W filters in the past and they perform extremely well by cutting the glare and reflection. Bought this with my 20mm f1.8g, great combo. Well built and solid construction.
    Date published: 2016-10-26
    Rated 4 out of 5 by from A high quality product I just received it two days ago, and did not have a chance to use it yet. However, everything indicated it is a high quality product. I fitted it in my camera/lens, and looked through the viewfinder to discern the various light reflections and the deeper blue tone in the sky. It is a thin filter, and should not negatively impact any pictures even at its wide angle setting. Because it is relatively thin, it may be difficult for those people who have big hands to try to rotate the polarizer filter. But I have small hands and it is not a problem for me.
    Date published: 2017-06-15
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