ND filters appear grey and reduce the amount of light reaching the film or CCD/CMOS. They have no effect on color balance.
They 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.
In the box:
Hoya NDx4 filter
original packaging
Consumer warranty:
2 years
1313
24066490322
Fiche technique
Series
Standard
Filter diameter
49mm
Filter density
ND4
Type of filter
gray
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