Schneider B+W UV/IR Cut Filter (486M) (MRC) 77mm

Schneider B+W UV/IR Cut Filter (486M) (MRC) 77mm

The Schneider 77E Infrared Cut Filter (486) is design exclusively for the Sony EX Cameras, it has a colorless glass carrier coated with extremely thin, partially reflecting layers with precisely computed thicknesses, similar to MC coating. The Schneider 77E Infrared Cut 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.