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Product DetailsSize: 77mm
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Product Description
From the Manufacturer
Protect Your Lens while Reducing UV Exposure
This UV Filter blocks the invisible Ultra Violet component of light from the sky, which can cause blur and to which many color films react with a blue cast. These filters should be called UV-Blocking Filters, because there are filters for technical applications that pass UV radiation and block all the other wavelengths. Nevertheless, the short term “UV Filter” has become established among photographers. UV Filters are ideal for photography in high altitudes (in the mountains), by the sea and in regions with very clean air. The pictures gain brilliance and disturbing blue casts are avoided. Because the glass is colorless, color rendition is not altered, aside from the elimination of the unwanted blue cast, and no increase in exposure is required. That makes a UV Filter very suitable as protection of the front element of the taking lens against dust, flying sand, sea water spray and the like, and it can be kept on the lens at all times. It is recommended for analog color and black-and-white as well as digital photography.
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.
Click for larger view.
F-Pro Brass Filter Mount
This filter uses our standard B+W F-Pro filter mount, which 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.
Product Description
Customer Reviews
My first impression was that this thing actually has some weight to it. It feels like you're actually getting something. When you pick it up, you can really notice a difference in lower quality filters (I usually bought Hoya or something from Best Buy in the past). This is well built.
Second impression is that this filter is *crystal* clear. My other filters are not as noticeably clear as this.
Now, when I have taken photos with this, I have still gotten the nice crisp clear shots I normally got with my 50mm. So it's protecting the lens and keeping my shots clear--exactly what I want from it. You may get exactly the same with a cheaper filter, I didn't try anything else. All I can tell you is that this filter delivered.
Also, I don't think I saw it listed in the specs, but this is the MRC model (meaning Pro grade).
clean your front element, place this filter on it, and now you never have to think about it again. the thread fit is very good on both ends of it.
the canon 67mm cap fits on the front of this filter perfectly. there's even a slight raised metal lip so that the cap doesn't sit against the filter glass.
well engineered, and worth the money.
I use this filter mainly to protect the front glass element on my Canon L lenses.
This lens is clear with no tint at all. Read more
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