B+W 72mm Circular Polarizer MRC Filter

B+W 72mm Circular Polarizer MRC Filter

B+W 72mm Circular Polarizer MRC Filter

B&H # BWCPMC72 MFR # 66-044843
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Product Highlights

  • Helps to Eliminate Reflections and Glare
  • Reduces Haze and Blue Cast in Landscapes
  • Greater Color and Tonal Saturation
  • MRC Multi-Resistant Coating
  • Rugged Brass Filter Ring
  • High Quality Schott Glass
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B+W 66-044843 overview

  • 1Description

The B+W 72mm 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.

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.
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.
In the Box
B+W 72mm Circular Polarizer MRC Filter
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    B+W 66-044843 specs

    Filter Type Circular Polarizer
    Filter Factor 2.5 (1.3 Stop)
    Shape Circle
    Circular Size 72 mm
    Rotating Yes
    Front Accessory Thread / Bayonet 72 mm
    Filter Material Glass
    Coatings Multi-Coating
    Packaging Info
    Package Weight 0.2 lb
    Box Dimensions (LxWxH) 3.7 x 3.7 x 0.8"

    B+W 66-044843 reviews

    72mm Circular Polarizer MRC Filter is rated 4.8 out of 5 by 89.
    Rated 3 out of 5 by from Does the job but has some minor issues What's good: Overall the quality is fine and the filter works fine Firm mount, yes - once it is on the lens. What's not: 1. I have a difficult time mounting this filter into some of my lenses. 2. Lens caps have an interesting way of popping off the lens when this filter is attached. I have other B+W filters but none with this problem. Undecided: these filters are heavier then most I've used and the glass seems much thicker. Benefit? I've left off whether I'd recommend to a friend. You'll do fine with these, but you'll also do fine with Hoya, which I normally use.
    Date published: 2010-12-05
    Rated 5 out of 5 by from Top Notch Filter This was purchased as a gift for my daughter's 18-200 Nikkor lens. I own a few of these myself for my 77mm lenses. Build quality is excellent, the brass ring doesn't stick and become difficult to remove as the lesser quality anodized aluminum rings do. Brass isn't as sensitive to temperature changes as aluminum, and therefore doesn't bind when trying to remove them after use or when swapping filters for effect in the field. Easy to use, a must for an outdoor / landscape photographer. Greatly reduces flare on hard surfaces, plants and water. Will bring out detail in sky and clouds you couldn't get without it. Rotate the ring at 90 degrees to the sun, and you'll be amazed at the difference it makes in your images. Almost always on my lenses, I only take them off when shooting at night. Sure, they are a bit costly. But the truth being, your image is only as good as your weakest link. Unfortunately, I learned this the hard way. The only filters I now own are B+W, Heliopan, and Singh-Ray. Why would you spend your hard earned money on a good lens, and buy a cheap filter? Your optics are your greatest asset to good quality images, and not the place to try and save a buck. Buy it. You won't be disappointed in the quality.
    Date published: 2011-08-08
    Rated 4 out of 5 by from Nice filter - gets the job done I am using his on my Canon EF 28-135mm F/3.5 - 5.6 IS USM lens. The image is clear and the polarization is effective but it does vignette a little at the wide angle end of the zoom. I shout have got the thin version.
    Date published: 2008-04-10
    Rated 5 out of 5 by from Impressive quality I have read that brass ring filters are much less likely to bind in the camera filter threads than the more standard aluminum ring filters. So I selected this filter based on that fact, the B + W name, and the advertised rugged build of the filter. I must admit I was inluenced also by the many good reviews. In my so-far limited use, I am impressed by the filter's performance and ruggedness. The rotating ring is smooth and well damped. The blue skies and white clouds are impressive. Although pricier than lesser polarizers, I consider it a worthwhile investment.
    Date published: 2011-11-23
    Rated 5 out of 5 by from It is false economy to buy a CHEAP Polar I photograph artwork for a living. I need to see with absolute clarity and this filter helps me do just that. Shiny oil paintings are rendered with exact colour and sharpness.A cheaply made polar filter which will not be multicoated will not retain all the detail. This filter does! This filter is threaded on both sides and it allows me to add a lens hood to the polarizer. Since the lens hood is substantial there is a little wobble to the rig, however it does not affect the performance.
    Date published: 2010-06-01
    Rated 5 out of 5 by from Good polarizer So far, so good. I'm recently used this during a trip to New Mexico on my Nikon 28mm 3.5 PC lens (mostly when unshifted.) No noticable vingetting, solid construction, and a quality feel. However, it's not quite as extreme in its effect when compared to my Hoya HD CPL. My subjective experience is that the Hoya increases saturation/cuts reflection a bit more. One thing I can't really comment on is how easy it is to clean, look to other reviews for that information.
    Date published: 2013-04-03
    Rated 5 out of 5 by from Well built filter B+W makes a well designed filter, better than Tiffewn and Hoya. This model was returned as it causes vignetting at 17mm with a crop sensor camera, purchased the 'slim design' to replace it.
    Date published: 2011-04-13
    Rated 5 out of 5 by from worth the extra cost Putting a filter on an expensive lens adds some measure of protection but also introduces more surfaces to cause problems with flare and ghosting so as a rule I avoid using filters. With a polarizing filter the goal is improved image quality so it is worth the extra cost to get a coated polarizer to minimize the potential problems introduced with this extra piece of glass. The thick version makes it easy to use a Nikon lens cap with the filter left in place which is more convenient. As this filter will be used with a 105mm lens there is no need for a thin filter that would need to be removed to use a lens cap. The thicker lens also allows for screwing on an additional filter such as a ND filter to reduce the light reaching the sensor by 4 stops or more which enables the use of much slower shutter speeds.
    Date published: 2010-07-07
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