The B+W 62mm MRC 110M Solid Neutral Density 3.0 Filter is an ND filter with a 1,000x filter factor that provides a 10-stop exposure reduction. Its 3.0 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By slowing your exposure time or increasing your aperture, you are able to control depth of field and convey movement more easily. Neutral density filters do not affect the coloration of the image and are ideal for pairing with other filters.
To prevent internal ghosting and reflections, each glass surface includes eight layers of anti-reflection coating. This Multi-Resistant Coating (MRC) also offers greater protection to the filter substrate and helps it to stay clean for longer than with uncoated filters. B+W filters are constructed from Schott glass for increased optical clarity. This filter features an F-Pro brass filter ring for durability as well as jamming prevention.
Neutral Density Filters Have Four Main Uses
- To enable slow shutter speeds to be used, especially with high speed films, to record movement in subjects such as waterfalls, clouds, or cars
- To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background
- To decrease the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations
- To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure
Neutral Density Factors
- ND 0.3 (exposure adjustment = 1 stop, reduces ISO 1/2)
- ND 0.6 (exposure adjustment = 2 stops, reduces ISO 1/4)
- ND 0.9 (exposure adjustment = 3 stops, reduces ISO 1/8)
- ND 1.2 (exposure adjustment = 4 stops, reduces ISO 1/16)
- ND 1.8 (exposure adjustment = approx. 6 stops, transmits 1% of light,)
- ND 3.0 (exposure adjustment = 10 stops, transmits 0.1% of light)
- ND 4.0 (exposure adjustment = 13-2/3 stops, transmits 0.01% of light)
- ND 6.0 = (exposure adjustment = approx. 20 stops)