Hoya 49mm HMC NDX4 Filter:
Hoya 49mm HMC Neutral Density NDX4 Filter is a lightweight and durable filter
which is designed to use in condition of extreme light intensity such as
sunshine on snowy mountains or on the beach or when using a camcorder, ND
filters are recommended as essential. ND filters appear grey and reduce the
amount of light reaching to the film and they have no affect on color balance.
It is multi-coating to minimize reflection at surface which reduces flare and
ghost. It enables slow shutter speeds with fast films to record movement in
subjects such as waterfalls, clouds, cars, seas etc.
It decreases depth of field by allowing wider apertures to be used, which helps
separate subjects from their background. It also decreases the effect of high
speed film and allows it to be used outdoors in blight situations. To allow cine
and video cameras to film subjects such as snow, sand or other bright scenes
which are normally cause over-exposure. This filter is essential for those
photographers who need clear, sharp and accurate image. The filter protect lens
surface from dust, scratches, dirt and fingerprints and can be easily install
Features: Hoya 49mm HMC NDX4 Filter
Decreases the effective ISO of high speed film (i.e.: above ISO400) and allow it to be used outdoors in blight situations.
Decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background.
Enables slow shutter speeds to be used, especially with fast films, to record movement in subjects such as waterfalls, clouds, cars, seas etc.
Allows 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.
Specifications: Hoya 49mm HMC NDX4 Filter
Device Type: Filter
Effect / Type: Neutral Density
Coating: Hoya-Multi Coated.
Item Display Diameter: 49 millimeters.
Attenuation Factor: 4
% transmittance: 25%
Filter Optical Density: 0.6
F-Stop Reduction: 2
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