B + W 77mm UV Protection Filter (010) for Camera Lens – Standard (F-PRO), MRC, 16 Layers Multi-Resistant Coating, Photography Filter, 77 mm, Clear Protector

Product Description ------------------- High Quality German Filters 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 ains), 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 ----------------------------------------------------------------- The left half of this filter has a 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. MRC coating causes the water 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 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. Side view of F-Pro . Click for larger view. ( https://images-na.ssl-images-.com/images/G/01/electronics/filters/schneider/F-Pro__Large._.jpg ) F-Pro Brass Filter ------------------------ This filter uses our standard B+W F-Pro filter , which has a front accessory thread and is made of brass. Compared to the earlier standard , the F-Pro , 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 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.

• PROTECT YOUR EXPENSIVE CAMERA LENSES - The B + W77 mm UV haze clear camera filter is here to add 16 multi-resistant layers of protection against accidental drops, dust, flying, fingerprints, dirt, scratches sand or seawater spray. Enjoy outdoor photography without worrying about your precious lenses anymore..
• TAKE BLUE CAST OUT OF THE PICTURE - Literally. Whether you are a professional photographer or a beginner, the invisible Ultra-Violet component of light from the sky is a common issue. Our UV-blocking haze protector filter for 77mm lenses will eliminate blue cast and help you snap clearer images..
• F-PRO - Thanks to precise precision manufacturing, B+W sockets fit absolutely accurately and are easy to install. The robust F-PRO filter with 77mm ensures easy handling, is suitable for wide-angle applications, and has a large selection of diameters as well as filter types. The internal thread means that a conventional lens hood can also be fitted..
• CHOOSE YOUR SIZE – To select the appropriate filter size, check your lens. On all lenses from Canon, Nikon, Olympus, Samsung, Fuji and other manufacturers there is a printed diameter symbol that determines the filter size..
• MADE IN GERMANY - Schneider Kreuznach (B + W) – We are proudly your precision mechanics spets for filters, photography, optics and precision, with more than 100 years of German experience. Schneider products have already been used in NASA's Apollo missions. Thanks to our multi-resistant nano coating lens filter, we are helping photographers everywhere take clearer, crisper images..