Full description
The HOYA ND8 Neutral Density filter reduces the light intensity by three f-stops (log density 0.9). It still features very good color neutrality. This ND filter is especially appropriate for use on cameras when the lens cannot be stopped down sufficiently in great brightness or when a deliberately low depth of field is desired. The filter factor is 8x.
Neutral Density filters have four main uses :
- To enable slow shutter speeds to be used, especially with fast films, to record movement in subjects such as waterfalls, clouds, cars, seas etc.
- 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 (ie: above ISO400) and allow it to be used outdoors in blight situations.
- To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which would normally cause over-exposure.
Neutral Density factors :
- NDx2 (exposure adjustment = 1 stop, reduces ISO 1/2)
- NDx4 (exposure adjustment = 2 stops, reduces ISO 1/4)
- NDx8 (exposure adjustment = 3 stops, reduces ISO 1/8)
CHARACTERISTICS
HMC (Hoya Multi-Coated)
These popular filters are renowned for their ability to minimize reflection at the filter surfaces which reduces flare and ghosting. The result is an average light transmission of over 97%, giving sharp contrast and well balanced color. HOYA HMC filters are recommended for enhancing the performance of today's multi-coated lenses.
![HOYA HMC ND8 Filtre Gris Neutre [82mm]](http://www.exportprive.com/10909-608-thickbox/hoya-hmc-nd-8-multi-coated-neutral-density-ndx8-filter-82mm-.jpg)
