Nanocoated filters with a diameter of 82 mm. 24-layer coated glass for optimal resistance against water, oil, and scratches. ND64 reduces light by 6 stops and is ideally suited for landscape photography. Nanocoated filters ensure optimal image quality. The slim design prevents vignetting. The filter reduces light intake without affecting the overall color balance. ND filters extend exposure time. A neutral density filter (ND filter) or gray filter blocks a portion of the incoming light. With a gray filter, you can significantly extend the exposure time and achieve effects such as blurred water or prevent overexposure of the image in bright sunlight with an open aperture.