The “high-end” polarizing foils of the Käsemann-type filters are neutral in color, they have a higher efficiency than conventional polarizing foils and they are cemented between high-grade plano-parallel optical glass. The resulting sandwich is then precision-polished again to achieve highly accurate plano-parallel surfaces. Subsequently, a special cementing technique is used to protect the foil against humidity. Brass mounts made on CNC-controlled machines ensure precise seating on the lens. Discriminating photographers regard the B+W Käsemann-Type Polarizing Filter to be the very best of all polarizing filters. They are well suited for applications that require the highest possible imaging quality, especially with high-speed telephoto lenses and apochromatic lenses.
Multi-Resistant Coating (MRC)
MRC by B+W is not only an extraordinarily effective multiple layer coating, it is also harder than glass, so that it protects filters from scratches (for instance when cleaning the filters), and it is also water and dirt repellent, thus facilitating filter maintenance.
This filter uses an Extra Wide mount made of brass. The diameter of the front portion of an EW "oversized" filter mount is much larger than the male thread that is screwed into the lens. As a result, the corresponding filter glass is also larger. When mounted to a wide angle lens with an angle of view of 110 degrees or even 120 degrees, vignetting is not an issue. Available in 67mm thru 112mm, EW filters should be used without a lens hood as vignetting may occur.
Canon Circular Polarizer - Light rays which are reflected become polarized. Polarizing filters are used...
Drop-in Circular Polarizing Filter 52-PLCWII Polarizing filters enhance picture quality by blocking harmful reflected light....
Light rays which are reflected by any surface can become polarised so polarising filters...
Subscribe to our newsletter and always be the first to hear about what is happening.
|Melbourne||(03) 9672 2222|
|Sydney||(02) 8004 7945|
|Brisbane||(07) 3103 1429|
|Perth||(08) 6444 7811|
|Adelaide||(08) 8470 8977|
|Darwin||(08) 8911 1262|
|Canberra||(02) 6176 0125|
|Hobart||(03) 6107 9442|
|Auckland||(09) 887 0479|
© 2018 michaels camera video digital.