B+W XS-Pro Digital HTC Circular Polarizers „KÄSEMANN“ MRC nano
B+W „Käsemann“ circular polarizers are manufactured with a polarizing
foil of extremely strict and exacting specifications. In terms of color
neutrality and extinction capability, the foil quality is ideal. Furthermore,
the glass used for this filter is sanded and fine-polished for excellent optical
quality and the advanced cementing technique prevents delamination in
environments of high humidity. This filter does not impair the image sharpness
of high-quality photographic lenses, which is particularly important in
high-resolution digital cameras and aspherical tele lenses.
B+W MRC nano: Nanotechnology with Lotus Effect Both sides of the B+W MRC nano
coated filters feature the same high-quality MC layer with 7 layers that is
used in the MRC coating. This ensures high transmittance and maximum elimination
of reflections by minimising reflection losses. Because the normal 4% reflection
losses at the surface of the glass are reduced to an average of well below 0.5%
with an MC layer, brighter colors and higher contrasts can be achieved. The MRC
nano outer layer is an innovative extra layer that significantly outperforms the
dirt- and water-repellent effect of the well-known B+W MRC coating. Thanks to
the nanotechnology-based surface property (lotus effect), dirt can hardly
adhere. Water experiences a very efficient beading effect and virtually rolls
off the surface of the glass. Cleaning the filter is incredibly easy and fast.
In addition, the superhydrophobic surface reduces fogging. After moving from
cold to warm surroundings, the condensation disappears from the surface of the
filter glass within seconds.