Neutral Density filters evenly reduce the amount of light passing thru the lens without effecting color.
Ideal for reducing bright light in large aperture situations when a narrow depth is field is needed.
Allows for slower shutter speeds when blurring or showing of movement is desired.
Allows balancing of exposure to highlight a key subject.
Lets you use higher speed films in bright light.
Hoya Neutral Density filters are available in most sizes and in three strengths:
.3 (2X) Reduces the light one f-stop.
.6 (4X) Reduces the light two f-stops.
.9 (8X) Reduces the light three f-stops.
Reviewed by 4 customers
Used this lens coupled with a Hoya 72mm Neutral Density ND-400 X for the Transit of Venus. See pic.
I already own a Hoya 72mm ND 2X and wanted to do a little experminting so I bought the Hoya 72mm ND 4X. They are both excellent filters for shooting waterfalls. I have found that if you are out in the open shooting a waterfall with a lot of sunlight, the ND 4X is the one to use.
Meets my needs.
great filter for prime lens and others. MUST HAVE!