Hoya Y5ND2049 Fiche technique télécharger pdf (Page 24)

SPEC

SPECIAL EFFECTS FILTERSfor Film & Digital

Variable Density FILTER

The creative possibilities are endless

With Variable Density

Without Filter

The Hoya Variable Density filter uses two polarizing layers to

control the amount of light that passes through the filter and into

the camera lens. At its minimum effect the filter passes 1/3 of the

light in a scene. That is equal to 1.5 stops on the aperture or

shutter speed. At its maximum effect the filter passes just 1/400 of

the light in a scene. That is equal to 9 stops on the aperture or

shutter speed.

After the filter is mounted on the lens, turning the filter ring between

“MINI” and “MAX” can greatly control the amount of light entering

the lens. With the Hoya Variable Density filter it is possible to shoot

with fast lenses like a 50mm f/1.4 lens wide open at f/1.4 in full sun

for a very shallow depth of field. Or, to slow down the shutter

speed to where the shutter can be open for several seconds in full

sunlight. This is enough to create artistic blurring shots of motion

on water, cars, people or almost anything that moves. The creative

possibilities are endless.

The Hoya Variable Density filter uses high-quality optical glass from

Hoya Corporation, the worlds largest optical glass manufacturer

and is available in sizes 52mm to 82mm.

For best results Hoya recommends using a tripod when photo-

graphing with slow shutter speeds.

HOYA-Catalog-2012-Inter1B.qx:HOYA New Catalog-V3-THK.qx 12/09/09 19:59 Page 24

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 55 56

Pas de commentaire

Hoya Y5ND2049 Fiche technique Page 24