B+W 820 ND 6.0 MRC nano MASTER Filter for Extreme Long Exposure Photography
The B+W 820 ND 6.0 MRC nano MASTER ND filter was designed for maximum light reduction. With a density of 6.0 and a full 20 stops, it reduces incoming light by a factor of 1.000.000x. Even in bright daylight, you maintain full creative control.
Whether you want flowing water to appear silky smooth, clouds streaking across the sky, or empty public spaces despite constant movement, this neutral density filter opens up entirely new creative possibilities. Especially in extremely bright scenes, the ND filter allows for very long exposure times or wide apertures for shallow depth of field. You control the image — not the light.
The high-quality special optical glass ensures maximum precision. Its color-neutral light reduction delivers natural results without unwanted color casts. Thanks to the 7+1 MRC nano coating, you benefit from minimal residual reflections, rich contrast, and brilliant colors. The nano coating is water- and dirt-repellent, making cleaning noticeably easier.
The durable B+W MASTER filter mount made of brass provides excellent stability with a slim profile. It is suitable for wide-angle lenses and minimizes the risk of vignetting. The filter glass is mounted stress-free and perfectly flat within the frame, allowing your lens to perform at its full optical potential.
The ND 6.0 filter is also suitable for experimental photography and indirect solar photography during eclipses. It enables precise, controlled work at a professional level.
What types of photography is the ND 6.0 filter suitable for?
The filter is ideal for extreme long exposure photography in daylight, creative effects with water and clouds, and experimental photography in very bright conditions.
How much light does the B+W 820 ND 6.0 reduce?
It reduces light by 20 stops. This corresponds to an extension factor of 1.000.000x and enables extremely long exposures even in bright sunlight.
Does the high density cause color casts?
No. The high-quality coating ensures uniform, color-neutral light reduction across the entire visible spectrum.
Is the filter suitable for direct solar observation?
No. The filter must not be used for direct visual observation of the sun, as harmful UV and IR radiation may still pass through.
Technical Specifications
- Density: ND 6.0
- Stops: -20
- Extension factor: 1.000.000x
- 7+1 MRC nano coating
- Color-neutral light reduction
- Highly scratch-resistant
- Slimline brass mount with front thread
Safety notice: ND filters are not suitable for direct solar observation. Never look directly at the sun, including through the camera viewfinder. Risk of blindness.