The B+W 86mm UV/IR Cut MRC 486M Filter is an ultraviolet and infrared control filter that is useful for digital cinematography as well as still photography. While recording video with a CCD or CMOS camera, multi-stop neutral-density filters are used to maintain proper exposure by compensating for increased light levels when widening the camera lens's iris to obtain a narrower depth of field. As the increased amount of light passes through multi-stop neutral-density filtration, visible light is progressively blocked, while infrared light is allowed to pass through. As the proportion of infrared light that reaches the sensor of a camera being used for digital cinematography becomes greater, the results can show unwanted color shifts, particularly in dark areas of the frame such as shadows where the appearance of black is dominant.
88% of ultraviolet light waves are blocked at 380 nanometers, before which they are further removed, reducing bluish cast of daylight when recording video or still photos.
95% of infrared light waves are blocked at 700 nanometers, after which they are progressively eliminated.
Useful with CCD or CMOS sensors to filter out infrared light pollution that cause color shifts frequently associated with high-definition recording with multi-stop neutral-density filters.
Does not require adjustments to exposure while in use.
Thirty layers of interference coatings on front surface limits light that falls on a digital camera sensor to the visible spectrum.
Multicoated rear surface prevents internal ghosting and reflections.
Constructed from Schott glass for optical clarity.
F-Pro brass filter ring helps to prevent jamming and provides additional strength.
86mm front filter threads allow use with other filters to protect front surface or combine with other effects.
