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B+W MRC UV-IR-CUT -suodin 52 mm

84,00 

Tuotekoodi: 14688 Tuoteryhmät: , Tagit: ,

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SuomiNouto palvelevasta kamerakaupasta 0,00 
Schenker Noutopistepaketti 3,70 
Nouto omasta postista 5,00 
Posti pakettiautomaatti 5,00 
Fiuge Helsinki 90min 16,12 
Fiuge Vantaa / Espoo 90min 19,84 
Postipaketti yrityksille 19,84 
Wolt 19,84 
Posti pitkä paketti 19,84 
Särkyvä 24,80 
EUDHL Express 44,64 
GLS EuroBusinessParcel 28,50 
KotiinkuljetusPosti kotipaketti 14,90 
Takuu: kk
EAN: 401224014688

Kuvaus

B+W UV-IR-CUT -suodin 52 mm

This B+W Interference Filter has a completely colorless glass carrier coated with a number of extremely thin, partially reflecting layers with precisely computed thicknesses, similar to MC coating. The B+W Filter 486 does not block by means of absorption, but by interference of the unwanted UV and IR radiation that is repeatedly reflected between these layers, affecting the wavelengths on both sides of the visible spectrum with a steep cut-off. It is used mainly on digital and video cameras with CCD sensors without an integrated IR protection filter, because the IR sensitivity of the CCD sensor would otherwise cause color changes and unsharpness. That unsharpness results from the chromatic aberration of the lenses that are only corrected for visible light. In the visible range, the transmission curve is very high and straight. This filter is completely clear and it requires no increase in exposure. Its filter factor is 1.

IMPORTANT NOTE REGARDING WIDEANGLE LENSES.
Please note however that, in contrast to mass-colored (integrally colored) filter glass, the (486M) UV-IR cut filter is based on thin-film technology. More than 30 interference coatings are vapor-deposited on one side, while the opposite side is MRC-coated. In wide-angle lenses, the laws of physics lead to shallower incidence angles for peripheral rays. For geometric reasons these rays have to travel further through the interference coatings than rays traveling vertically through the coatings in the center of the lens. With increasing angle of incidence, this leads to a change in light color towards blue. This effect can clearly be seen by looking at an UV-IR barrier filter from an angle. The color of the reflected light changes, with a similar effect on the light traveling through the filter. The filter is therefore not suitable for lens systems with an angle of view of more than 60°

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