Average Reviews:
(More customer reviews)Great filter, which permits long exposure work. You should know it is very dark, so you need to remove it to recompose your shot. You can't see anything through the lens with this filter on. Great results. Permits nice long 15+ second exposures even in daylight.
Click Here to see more reviews about: Hoya 77mm Neutral Density ND-400 X, 9 Stop Multi-Coated Glass Filter
Photographing solar eclipses and ultra-bright light sources can be extremely dangerous. This filter reduces light values by 9 stops to less than 1/500th of its original intensity and allows safe photography. It can also be used to achieve super slow shutter speeds in daylight to render moving subjects invisible. Neutral Density filters have several uses and offer the possibility to achieve otherwise unachievable results. ND filters appear grey and reduce the amount of light reaching the film. They have no effect on color balance. This neutral density filter has three main uses: 1) To enable slow shutter speeds to be used, especially with high speed films, to record movement in subjects such as waterfalls, clouds, or cars. 2) To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background. 3) To decrease the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations. Multicoated to minimize reflection at the filter surfaces which reduces flare and ghosting. Neutral Density factor: ND400x (exposure adjustment = approx. 9 stops, reduces ISO 1/500)
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