SLR Magic Solid ND Image Enhancer Filter (62mm, 4-Stop)

The 62mm SLR Magic Solid ND Image Enhancer Filter is an ultraviolet and infrared control filter with a 16x filter factor that provides a 4-stop exposure reduction. It 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 frequently 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 digital camera sensor 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.