Exposure Compensation

B+W ND Filter 802 52 mm Master MRC Nano. ND filters or neutral density (ND) filters are used if too much light restricts creative possibilities. They reduce the light in accordance with their density. They therefore allow longer exposure times or more widely opened apertures. Applications are highly varied and in some cases experimental. For very bright motifs in the snow or on the beach the aperture would also have to be closed, despite minimum exposure time. This would mean losing the option of short depth of field, e. g. for portraits. ND filters can produce wipe effects in movements if the exposure time can be extended with the required aperture. A waterfall then no longer appears to be frozen, but as a flowing motion. ND filters create ingenious effects in architecture or urban photography.

With long exposure times of several hours, people walking through the shot are blurred or not reproduced at all. For physical reasons, very dense filters possess a warm tone which can be compensated in image processing.

The excellent, finely ground and polished special glass is used as the basis for the new ND filter glasses. This guarantees the necessary optical quality, and also does not have any adverse effect on a correspondingly high-quality lens. In the thin-film technology that has been developed here, it is not just the pure ND filter effect that delivers results: a 3-layer combination coating also optimises the ND filter.

MRC Nano Coating

An important criteria for a perfect B+W filter is a high-quality coating, also known as an antireflection coating. With a B+W filter, such layers are evaporated by means of thin-layer technique, a quite complex coating process. The coating material consists of special substrates that are applied in one or more layers depending on the coating system.. In the MRC nano coated B+W filter, a water droplet remains practically spherical. It rolls over the surface. A first-rate dirt and water-repellent effect occurs.

Master Filter Holder

Durable and robust due to brass mount with better grip due to optimized knurl. Easier mounting due to new lacquer technology. Best choice for super wide angle – telephoto lenses.

Video - B+W ND Filter

In addition to the filter effect, the combination coating also prevents trouble-some reflections by including a multilayer anti-reflection compo-nent with seven layers on each side of the filter. Finally, an outer layer with the usual dirt- and water-repellent properties is applied. With this feature, the filter not only has all-round protection, but simple cleaning and care of the filter disk are also taken care of. The light attenuation itself is very uniform over the entire visible range and therefore produces optimal, colour-neutral images.

By being able to use this coating technology at specified glass substrates, the process can also be applied in the B+W XS-Pro digital filter range.

Foundation of the company “Optische Anstalt Jos. Schneider & Co.” The company, founded 1913 by Joseph Schneider, trades today under the name of Jos. Schneider Optische Werke GmbH. It manufactures for the world market high-performance lenses, photographic and industrial filters as well as professional accessories. Further product ranges are electro-hydraulic and electro-pneumatic servo valves for the machine constuction and industrial processing engineering as well as single and multiple focus lenses and graduated lenses for the ophthalmic optics. The company’s B+W brand for photo filters are established worldwide as premium products.

B+W Infrared Filter 695 52 mm Basic. The B+W 092 is a popular filter for IR photography with digital SLR cameras. This nearly opaque filter looks dark purplish when held in front of a light source and blocks the visible spectrum up to 650 nm. It passes only 50% of the radiation just below 700 nm and from 730 nm to 2000 nm, transmission is greater than 90%. Effectiveness and filter factor are largely film and light dependent and individual testing is recommended.

B+W IR Filter | 695 (092) - 830 (093)

Basic filter ring

Basic filter ring is durable and robust due to brass mount with a better grip due to optimized knurl. Easier mounting due to new lacquer technology. Basic filters can be used on most lenses down to 24mm, size 24x36.

Video

The company, founded 1913 by Joseph Schneider, trades today under the name of Jos. Schneider Optische Werke GmbH. It manufactures for the world market high-performance lenses, photographic and industrial filters as well as professional accessories. Further product ranges are electro-hydraulic and electro-pneumatic servo valves for the machine constuction and industrial processing engineering as well as single and multiple focus lenses and graduated lenses for the ophthalmic optics. The company’s B+W brand for photo filters are established worldwide as premium products.

B+W Infrared Filter 093 52 mm. This filter blocks visible lights (up to 800 mm) almost completely. It is dark red, almost black. With analog IR film or IR sensitive digital cameras it delivers a fantastic wood effect (white leaves) and a typical dark sky. The exposure values vary according to the digital camera model being used and are best determined by experimenting. They are usually in range of a few seconds. Focusing is performed first without a filter using IR focus correction.

Tip

Whether or not digital cameras is IR-sensitive can be determined with an IR remote control. Instructions can be found on the Internet. The IR focus point is somewhat further away than that for visible light. With the filter attached, white balance is performed automatically or (preferably) manually. The IR photos are optimized in the image-processing program: Increase contrast automatically or in the histogram, convert color images to black and white or experiment with individual color channels, leaving the red channel on maximum. No matter whether digital or analog, infrared photography is experimental by nature.

 Video

B+W Filter 486 UV-IR Cut 52 mm Basic MRC. Detta filter filtrerar helt bort oönskad UV och IR strålning. Filtret rekommenderas främst för CCD/CMOS applikationer när digitala sensorer inte är utrustade med IR skyddsfilter. Övriga applikationer är video, digitalfotografering och konventionell svartvit- eller färgfotografering såväl som tekniska applikationer. Filtret består av ett helt ofärgat optiskt filterglas som har belagts med ett flertal, extremt tunna, lager av reflekterande material som stöter bort oönskad UV och IR strålning. Bör ej användas på vidvinkelobjektiv med större horisontell bildvinkel än 60°.

B+W 486 UV-IR Blockerande Filter

MRC

MRC är en antireflexbeläggning med hela 7 lager samt ett skyddslager som motstår smuts, väta och är extra motståndskraftigt mot repor med en beläggning som gör det lättare att rengöra.

Basic filterfattning

Basic filterfattning är tillverkad av mässing med tillbehörsgänga i fronten. Filterfattningen är mattsvart och har en mycket greppvänlig ytterring. Basic filterfattning kan användas på flesta objektiv ned till 24mm, format 24x36, utan att vinjettering uppstår.

Video

B+W har över 100 års erfarenhet av tillverkning av optik och kamerafilter vilket gjort att de utvecklat förstklassig expertis inom området. Filter från B+W är unika tack vare sina utmärkta optiska och mekaniska egenskaper. B+W har mycket brett utbud av filtertyper, allt från UV och Polarisationsfilter till specialfilter för IR och vetenskaplig fotograferingar.