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B+W 77mm Circular Polarizer with Multi-Resistant Coating
|Price:||$100.01 & FREE Shipping. Details|
|You Save:||$220.99 (69%)|
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- Brass Ring for higher Quality Image
- Highest possible polishiing technique
- World's best optical glass
- New thinner Pro mount. No vignetting
- USA Warranty
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|Item Weight||0.21 pounds|
|Package Height||0.79 x 3.7 x 3.7 inches|
|Shipping Weight||0.22 pounds|
From the Manufacturer
Circular Polarizers - Increase Color Saturation, Reduce Reflections
The image on the right was taken using a
B+W Circular Polarizer. Click for larger view.
The image on the right was taken using a
B+W Circular Polarizer. Click for larger view.
Highly efficient standard circular polarizing filter for all cameras with beam splitters in the light paths of their TTL exposure meter and with autofocus lenses. Circular polarization has the same pictorial effect as linear polarization, but allows for proper exposure metering and/or autofocus distance settings.
B+W Polarizers increase color saturation and reduce reflections. The neutral gray color and plane parallel polarizer material guarantee optimal image results. High-quality optical glass ensures excellent pictorial quality. The filter factor varies according to how the filter is positioned in relation to the sun. Exposure compensation is about two f-stops.
Linear and circular polarizers both consist of a linear polarizer foil but differ in their construction in the following way. Modern DSLR cameras have a beam-splitting prism that sends part of the incoming light to the meter and part to the viewfinder. The effect is that the light entering the meter is partially polarized by the beam-splitter. A linear polarizer placed on the lens of such a system will act as a second polarizer and block light to the meter by a degree dependent on the angle between the prism and the polarizer on the lens. The result is incorrect exposure/aperture values from the meter. The circular polarizer circumvents this problem through the addition of a 1/4-wave retarder, or delay foil. This ensures that the linearly polarized light is changed into a rotation that appears unpolarized to the meter, resulting in proper exposure/aperture readings.
MRC - A Special Scratch-Resistant, Water and Dirt Repelling Coating
traditional coating. The right half
has MRC coating.
The lens elements of high-quality lenses and the plano surfaces of filters require a perfect shape and smoothness to achieve the best optical quality. Dirt, greasy fingerprints, water marks and scratches reduce the image contrast and the sharpness, which can result in blooming at light sources and have an effect similar to a soft-focus lens. A clean front lens element and clean filter surfaces are therefore an absolute pre-requisite for demanding photographers.
to bead up and slide right off.
The MRC coating is first and foremost a broadband anti-reflection coating. This means that its reflection-reducing effect, which is thus also a transmission-increasing effect, i.e. one which suppresses scattered light and ghost images and transmits more light, has a broadband action over the full spectrum. In contrast, the (almost always blue) single-layer coating only has a high effect in the medium wavelength range around yellow and yellow-green where the eye is most sensitive to light, while its effect is greatly reduced toward the blue-violet and purple-red end regions of the visible spectrum. With the MRC coating, this blue, violet and red to deep-red light cannot produce any contrast reducing scattered light, spotty reflections or ghost images. A broadband effect can only be achieved with a multilayer coating which requires a much higher effort and precision because unevenness and irregularities of the individual layers build up on one another and amplify one another. Schneider therefore uses a plasma-assisted evaporation coating process in which inert gas ions accelerated in an electrical field compact the material deposited on the lens surface in the vacuum chamber.
For photographers, the main advantage of MRC coating, is it's ability to combat flare and ghosting. An added benefit is that their filters remain free of dirt longer, so that they do not have to be cleaned so often. When cleaning the filter does become necessary, it is a lot easier to wipe off the dirt with a blower brush, because of MRC's ability to repel dirt and moisture. This also reduces the risk of micro-scratches which can occur during cleaning.
Mount. Click for larger view.
F-Pro Brass Filter Mount
This filter uses a rotating B+W F-Pro filter mount for added creative options. The mount has a front accessory thread and is made of brass. Compared to the earlier standard mount, the F-Pro mount, introduced in 2001, has become thinner. Now it can be used with wide angle lenses, including most 24mm focal lengths on a full frame body, without vignetting. Another advantage of the F-Pro mount is its modified retaining ring, which is no longer threaded in from the front, but holds the filter glass in place from the back. When removing a filter or lens hood that has been screwed on too tight to the filter, the retaining ring is not at risk of loosening.
Size: 77 mm
Top Customer Reviews
The MRC designation is your cue that this filter will not produce ghost images when used on digital SLRs due to an anti-reflectivity coating put on both surfaces of the glass. Hence the large increase in price when the MRC designation is present.
Polarizer filters increase the saturation as seen by the camera which helps to make the deep colors you see in photo books. Additionally, a Polarizer filter will remove haze from outdoor shots making them sharper AND will cut reflection from water, windows, and foliage - something you can't do yourself afterwards with Photoshop.
Keep in mind that using a filter like this will decrease your light by two stops and that you have to rotate the filter every time you move to ensure you're getting the right effect. Also, you have to use a filter like this only under the right conditions. Most of the time you won't need it but when you do it will make your picture A LOT better.
Since you're attaching a filter to the end of your lens you're introducing the possibility of degrading the final image. While you can use a B+W (or a Heliopan) filter with any lens BEWARE of using the cheap filters you find at your local camera store. If you're taking pictures that are important to you it is absolutely worth the extra money to get a good filter for your lens.
Yes, the filter is costly. Magic never comes cheaply. In fact, the filter is made to rotate once installed so there are extra moving parts not found on most filters. Then there is the high-quality coating that helps with flare caused by the filter. There's a cost for this too. But when all is said and done, it's worth every last penny of the cost for the results you can get.
The circular polarizer is necessary for single-lens-reflex (SLR) cameras that use auto-focus and metering systems because many of these cameras' systems would be adversely affected by linear polarizing filters. So if you have a recent, auto-focus, through-the-lens metering camera, you probably should be using a circular polarizing filter - check your camera manual if you are not sure.
This in my experience is the most useful filter available and worth every penny. Unlike the Skylight or UV filters sold because "you need to protect your lens" or "cut UV-haze". Just remember that todays modern lenses have very hard glass, hard lens coatings, and that almost no UV rays pass through glass and today's multi-coated lenses. Unlike the polarizing filter, the Skylight and UV filters are a waste of your money unless you are truly shooting in a very hostile environment. Save the money you would have spent on these profit makers for the camera store and buy a filter that will actually make an immediate difference in your photography - a polarizing filter!
B+W filters are not cheap, but they're the best.
Most Recent Customer Reviews
This is a great quality filter. The fit and finish are excellent and it does an outstanding job at varying the lighting possibilities and allowing me to get creative with lighting... Read morePublished 18 days ago by Gray Anthony
Great picture quality, and easy to use! Just rotate the lens until you get the desired effect. Great for outdoor landscape shots. Couldn't be happier.Published 3 months ago by Andrew M
not quite as effective as I would like with manipulating dynamics in a shot; much less noticeable than other circular polarizers I've used. $$ to effective ratio is undesirable.Published 4 months ago by Bennett