UV filter B + W Filter 77 mm

The UV filter blocks the invisible UV portion of the sky light, which can cause blurring and which many color films react to with blue tint. It should actually be called UV blocking filters, because there are also UV filters for technical applications that allow UV to pass through and block everything else. But the short name UV filter has become established among photographers. UV filters are ideal for (landscape) images in mountains, at the lake and in areas with very pure air. The pictures gain brilliance, disturbing bluish veils are avoided. Because the glass is colorless, no color reproduction changes, apart from the blue-cast removal, nor does an exposure extension need to be made. Therefore, the UV filter is also suitable as a front lens protection against flying sand, sea water splashes, etc. and can remain on the lens permanently. It is recommended for analogueue color and black and white as well as for digital recordings. B+W-Multi-Resistant Coating MRC B+W MRC-coated filters have a multi-layer coating on both sides, with 7 +1 layers each, of which 7, also called MC-layer, ensure high transmission and maximum mirroring by minimizing reflection losses. Instead of the usual 4% reflexon losses on the glass surface, the MC layer reduces this value to significantly below 0.5% on average. This allows for more brilliant colors and higher contrast. The reflectance curve of the MC slice shows the more accurate values across the entire visible spectrum. Since the sensor in the camera always reflects a part of the incident light back, ghost or double images may occur depending on the recording situation. This effect is significantly minimized when using both MRC anti-glare filters and completely eliminated depending on the recording situation. The last outermost layer, for which the R = resistent in the name B+W MRC, serves a different purpose. It provides the dirt and water-repellent surface of the B+W MRC coating. This makes cleaning much easier.

This text is machine translated.